Inheritance diagram for ShellProblem< ELEMENT >:

Public Member Functions
	ShellProblem (const unsigned &nx, const unsigned &ny, const double &lx, const double &ly)
	Constructor. More...

	~ShellProblem ()
	Destructor: delete mesh, geometric object. More...

ShellMesh< ELEMENT > *	solid_mesh_pt ()
	Overload Access function for the mesh. More...

void	actions_after_newton_solve ()
	Actions after solve empty. More...

void	actions_before_newton_solve ()
	Actions before solve empty. More...

void	actions_after_distribute ()

void	solve ()

	ShellProblem (const unsigned &nx, const unsigned &ny, const double &lx, const double &ly, const unsigned &problem_id)
	Constructor. More...

CircularCylindricalShellMesh< ELEMENT > *	mesh_pt ()
	Overload Access function for the mesh. More...

void	actions_after_newton_solve ()
	Actions after solve empty. More...

void	actions_before_newton_solve ()
	Actions before solve empty. More...

void	create_bc_elements (const unsigned &b)
	Create clamping bc face elements on the b-th boundary of the Mesh. More...

void	solve (string &dir_name)
	Do parameter study. More...

	ShellProblem (const unsigned &nx, const unsigned &ny, const double &lx, const double &ly)
	Constructor. More...

ShellMesh< ELEMENT > *	mesh_pt ()
	Overload Access function for the mesh. More...

void	actions_after_newton_solve ()
	Actions after solve empty. More...

void	actions_before_newton_solve ()
	Actions before solve empty. More...

void	solve ()

	ShellProblem (const unsigned &nx, const unsigned &ny, const double &lx, const double &ly)
	Constructor. More...

	~ShellProblem ()
	Destructor: delete mesh, geometric object. More...

ShellMesh< ELEMENT > *	mesh_pt ()
	Overload Access function for the mesh. More...

void	actions_after_newton_solve ()
	Actions after solve empty. More...

void	actions_before_newton_solve ()
	Actions before solve empty. More...

void	solve ()

	ShellProblem (const unsigned &nx, const unsigned &ny, const double &lx, const double &ly)
	Constructor. More...

CircularCylindricalShellMesh< ELEMENT > *	mesh_pt ()
	Overload Access function for the mesh. More...

void	actions_after_newton_solve ()
	Actions after solve empty. More...

void	actions_before_newton_solve ()
	Actions before solve empty. More...

void	run_it ()
	Do parameter study. More...

void	doc_solution (DocInfo &doc_info, ofstream &trace_file)
	Doc solution. More...

Public Member Functions inherited from oomph::Problem
virtual void	debug_hook_fct (const unsigned &i)

void	set_analytic_dparameter (double *const &parameter_pt)

void	unset_analytic_dparameter (double *const &parameter_pt)

bool	is_dparameter_calculated_analytically (double *const &parameter_pt)

void	set_analytic_hessian_products ()

void	unset_analytic_hessian_products ()

bool	are_hessian_products_calculated_analytically ()

void	set_pinned_values_to_zero ()

bool	distributed () const

virtual void	actions_before_adapt ()

virtual void	actions_after_adapt ()
	Actions that are to be performed after a mesh adaptation. More...

OomphCommunicator *	communicator_pt ()
	access function to the oomph-lib communicator More...

const OomphCommunicator *	communicator_pt () const
	access function to the oomph-lib communicator, const version More...

	Problem ()

	Problem (const Problem &dummy)=delete
	Broken copy constructor. More...

void	operator= (const Problem &)=delete
	Broken assignment operator. More...

virtual	~Problem ()
	Virtual destructor to clean up memory. More...

Mesh *&	mesh_pt ()
	Return a pointer to the global mesh. More...

Mesh *const &	mesh_pt () const
	Return a pointer to the global mesh (const version) More...

Mesh *&	mesh_pt (const unsigned &imesh)

Mesh *const &	mesh_pt (const unsigned &imesh) const
	Return a pointer to the i-th submesh (const version) More...

unsigned	nsub_mesh () const
	Return number of submeshes. More...

unsigned	add_sub_mesh (Mesh *const &mesh_pt)

void	flush_sub_meshes ()

void	build_global_mesh ()

void	rebuild_global_mesh ()

LinearSolver *&	linear_solver_pt ()
	Return a pointer to the linear solver object. More...

LinearSolver *const &	linear_solver_pt () const
	Return a pointer to the linear solver object (const version) More...

LinearSolver *&	mass_matrix_solver_for_explicit_timestepper_pt ()

LinearSolver *	mass_matrix_solver_for_explicit_timestepper_pt () const

EigenSolver *&	eigen_solver_pt ()
	Return a pointer to the eigen solver object. More...

EigenSolver *const &	eigen_solver_pt () const
	Return a pointer to the eigen solver object (const version) More...

Time *&	time_pt ()
	Return a pointer to the global time object. More...

Time *	time_pt () const
	Return a pointer to the global time object (const version). More...

double &	time ()
	Return the current value of continuous time. More...

double	time () const
	Return the current value of continuous time (const version) More...

TimeStepper *&	time_stepper_pt ()

const TimeStepper *	time_stepper_pt () const

TimeStepper *&	time_stepper_pt (const unsigned &i)
	Return a pointer to the i-th timestepper. More...

ExplicitTimeStepper *&	explicit_time_stepper_pt ()
	Return a pointer to the explicit timestepper. More...

unsigned long	set_timestepper_for_all_data (TimeStepper *const &time_stepper_pt, const bool &preserve_existing_data=false)

virtual void	shift_time_values ()
	Shift all values along to prepare for next timestep. More...

AssemblyHandler *&	assembly_handler_pt ()
	Return a pointer to the assembly handler object. More...

AssemblyHandler *const &	assembly_handler_pt () const
	Return a pointer to the assembly handler object (const version) More...

double &	minimum_dt ()
	Access function to min timestep in adaptive timestepping. More...

double &	maximum_dt ()
	Access function to max timestep in adaptive timestepping. More...

unsigned &	max_newton_iterations ()
	Access function to max Newton iterations before giving up. More...

void	problem_is_nonlinear (const bool &prob_lin)
	Access function to Problem_is_nonlinear. More...

double &	max_residuals ()

bool &	time_adaptive_newton_crash_on_solve_fail ()
	Access function for Time_adaptive_newton_crash_on_solve_fail. More...

double &	newton_solver_tolerance ()

void	add_time_stepper_pt (TimeStepper *const &time_stepper_pt)

void	set_explicit_time_stepper_pt (ExplicitTimeStepper *const &explicit_time_stepper_pt)

void	initialise_dt (const double &dt)

void	initialise_dt (const Vector< double > &dt)

Data *&	global_data_pt (const unsigned &i)
	Return a pointer to the the i-th global data object. More...

void	add_global_data (Data *const &global_data_pt)

void	flush_global_data ()

LinearAlgebraDistribution *const &	dof_distribution_pt () const
	Return the pointer to the dof distribution (read-only) More...

unsigned long	ndof () const
	Return the number of dofs. More...

unsigned	ntime_stepper () const
	Return the number of time steppers. More...

unsigned	nglobal_data () const
	Return the number of global data values. More...

unsigned	self_test ()
	Self-test: Check meshes and global data. Return 0 for OK. More...

void	enable_store_local_dof_pt_in_elements ()

void	disable_store_local_dof_pt_in_elements ()

unsigned long	assign_eqn_numbers (const bool &assign_local_eqn_numbers=true)

void	describe_dofs (std::ostream &out= *(oomph_info.stream_pt())) const

void	enable_discontinuous_formulation ()

void	disable_discontinuous_formulation ()

void	get_dofs (DoubleVector &dofs) const

void	get_dofs (const unsigned &t, DoubleVector &dofs) const
	Return vector of the t'th history value of all dofs. More...

void	set_dofs (const DoubleVector &dofs)
	Set the values of the dofs. More...

void	set_dofs (const unsigned &t, DoubleVector &dofs)
	Set the history values of the dofs. More...

void	set_dofs (const unsigned &t, Vector< double * > &dof_pt)

void	add_to_dofs (const double &lambda, const DoubleVector &increment_dofs)
	Add lambda x incremenet_dofs[l] to the l-th dof. More...

double *	global_dof_pt (const unsigned &i)

double &	dof (const unsigned &i)
	i-th dof in the problem More...

double	dof (const unsigned &i) const
	i-th dof in the problem (const version) More...

double *&	dof_pt (const unsigned &i)
	Pointer to i-th dof in the problem. More...

double *	dof_pt (const unsigned &i) const
	Pointer to i-th dof in the problem (const version) More...

virtual void	get_inverse_mass_matrix_times_residuals (DoubleVector &Mres)

virtual void	get_dvaluesdt (DoubleVector &f)

virtual void	get_residuals (DoubleVector &residuals)
	Get the total residuals Vector for the problem. More...

virtual void	get_jacobian (DoubleVector &residuals, DenseDoubleMatrix &jacobian)

virtual void	get_jacobian (DoubleVector &residuals, CRDoubleMatrix &jacobian)

virtual void	get_jacobian (DoubleVector &residuals, CCDoubleMatrix &jacobian)

virtual void	get_jacobian (DoubleVector &residuals, SumOfMatrices &jacobian)

void	get_fd_jacobian (DoubleVector &residuals, DenseMatrix< double > &jacobian)
	Get the full Jacobian by finite differencing. More...

void	get_derivative_wrt_global_parameter (double *const &parameter_pt, DoubleVector &result)

void	get_hessian_vector_products (DoubleVectorWithHaloEntries const &Y, Vector< DoubleVectorWithHaloEntries > const &C, Vector< DoubleVectorWithHaloEntries > &product)

void	solve_eigenproblem (const unsigned &n_eval, Vector< std::complex< double >> &eigenvalue, Vector< DoubleVector > &eigenvector, const bool &steady=true)
	Solve the eigenproblem. More...

void	solve_eigenproblem (const unsigned &n_eval, Vector< std::complex< double >> &eigenvalue, const bool &steady=true)

virtual void	get_eigenproblem_matrices (CRDoubleMatrix &mass_matrix, CRDoubleMatrix &main_matrix, const double &shift=0.0)

void	assign_eigenvector_to_dofs (DoubleVector &eigenvector)
	Assign the eigenvector passed to the function to the dofs. More...

void	add_eigenvector_to_dofs (const double &epsilon, const DoubleVector &eigenvector)

void	store_current_dof_values ()
	Store the current values of the degrees of freedom. More...

void	restore_dof_values ()
	Restore the stored values of the degrees of freedom. More...

void	enable_jacobian_reuse ()

void	disable_jacobian_reuse ()
	Disable recycling of Jacobian in Newton iteration. More...

bool	jacobian_reuse_is_enabled ()
	Is recycling of Jacobian in Newton iteration enabled? More...

bool &	use_predictor_values_as_initial_guess ()

void	newton_solve ()
	Use Newton method to solve the problem. More...

void	enable_globally_convergent_newton_method ()
	enable globally convergent Newton method More...

void	disable_globally_convergent_newton_method ()
	disable globally convergent Newton method More...

void	newton_solve (unsigned const &max_adapt)

void	steady_newton_solve (unsigned const &max_adapt=0)

void	copy (Problem *orig_problem_pt)

virtual Problem *	make_copy ()

virtual void	read (std::ifstream &restart_file, bool &unsteady_restart)

virtual void	read (std::ifstream &restart_file)

virtual void	dump (std::ofstream &dump_file) const

void	dump (const std::string &dump_file_name) const

void	delete_all_external_storage ()

virtual void	symmetrise_eigenfunction_for_adaptive_pitchfork_tracking ()

double *	bifurcation_parameter_pt () const

void	get_bifurcation_eigenfunction (Vector< DoubleVector > &eigenfunction)

void	activate_fold_tracking (double *const &parameter_pt, const bool &block_solve=true)

void	activate_bifurcation_tracking (double *const &parameter_pt, const DoubleVector &eigenvector, const bool &block_solve=true)

void	activate_bifurcation_tracking (double *const &parameter_pt, const DoubleVector &eigenvector, const DoubleVector &normalisation, const bool &block_solve=true)

void	activate_pitchfork_tracking (double *const &parameter_pt, const DoubleVector &symmetry_vector, const bool &block_solve=true)

void	activate_hopf_tracking (double *const &parameter_pt, const bool &block_solve=true)

void	activate_hopf_tracking (double *const &parameter_pt, const double &omega, const DoubleVector &null_real, const DoubleVector &null_imag, const bool &block_solve=true)

void	deactivate_bifurcation_tracking ()

void	reset_assembly_handler_to_default ()
	Reset the system to the standard non-augemented state. More...

double	arc_length_step_solve (double *const &parameter_pt, const double &ds, const unsigned &max_adapt=0)

double	arc_length_step_solve (Data *const &data_pt, const unsigned &data_index, const double &ds, const unsigned &max_adapt=0)

void	reset_arc_length_parameters ()

int &	sign_of_jacobian ()

void	explicit_timestep (const double &dt, const bool &shift_values=true)
	Take an explicit timestep of size dt. More...

void	unsteady_newton_solve (const double &dt)

void	unsteady_newton_solve (const double &dt, const bool &shift_values)

void	unsteady_newton_solve (const double &dt, const unsigned &max_adapt, const bool &first, const bool &shift=true)

double	doubly_adaptive_unsteady_newton_solve (const double &dt, const double &epsilon, const unsigned &max_adapt, const bool &first, const bool &shift=true)

double	doubly_adaptive_unsteady_newton_solve (const double &dt, const double &epsilon, const unsigned &max_adapt, const unsigned &suppress_resolve_after_spatial_adapt_flag, const bool &first, const bool &shift=true)

double	adaptive_unsteady_newton_solve (const double &dt_desired, const double &epsilon)

double	adaptive_unsteady_newton_solve (const double &dt_desired, const double &epsilon, const bool &shift_values)

void	assign_initial_values_impulsive ()

void	assign_initial_values_impulsive (const double &dt)

void	calculate_predictions ()
	Calculate predictions. More...

void	enable_mass_matrix_reuse ()

void	disable_mass_matrix_reuse ()

bool	mass_matrix_reuse_is_enabled ()
	Return whether the mass matrix is being reused. More...

void	refine_uniformly (const Vector< unsigned > &nrefine_for_mesh)

void	refine_uniformly (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh)

void	refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	refine_uniformly (DocInfo &doc_info)

void	refine_uniformly_and_prune (DocInfo &doc_info)

void	refine_uniformly ()

void	refine_uniformly (const unsigned &i_mesh, DocInfo &doc_info)
	Do uniform refinement for submesh i_mesh with documentation. More...

void	refine_uniformly (const unsigned &i_mesh)
	Do uniform refinement for submesh i_mesh without documentation. More...

void	p_refine_uniformly (const Vector< unsigned > &nrefine_for_mesh)

void	p_refine_uniformly (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	p_refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh)

void	p_refine_uniformly_and_prune (const Vector< unsigned > &nrefine_for_mesh, DocInfo &doc_info)

void	p_refine_uniformly (DocInfo &doc_info)

void	p_refine_uniformly_and_prune (DocInfo &doc_info)

void	p_refine_uniformly ()

void	p_refine_uniformly (const unsigned &i_mesh, DocInfo &doc_info)
	Do uniform p-refinement for submesh i_mesh with documentation. More...

void	p_refine_uniformly (const unsigned &i_mesh)
	Do uniform p-refinement for submesh i_mesh without documentation. More...

void	refine_selected_elements (const Vector< unsigned > &elements_to_be_refined)

void	refine_selected_elements (const Vector< RefineableElement * > &elements_to_be_refined_pt)

void	refine_selected_elements (const unsigned &i_mesh, const Vector< unsigned > &elements_to_be_refined)

void	refine_selected_elements (const unsigned &i_mesh, const Vector< RefineableElement * > &elements_to_be_refined_pt)

void	refine_selected_elements (const Vector< Vector< unsigned >> &elements_to_be_refined)

void	refine_selected_elements (const Vector< Vector< RefineableElement * >> &elements_to_be_refined_pt)

void	p_refine_selected_elements (const Vector< unsigned > &elements_to_be_refined)

void	p_refine_selected_elements (const Vector< PRefineableElement * > &elements_to_be_refined_pt)

void	p_refine_selected_elements (const unsigned &i_mesh, const Vector< unsigned > &elements_to_be_refined)

void	p_refine_selected_elements (const unsigned &i_mesh, const Vector< PRefineableElement * > &elements_to_be_refined_pt)

void	p_refine_selected_elements (const Vector< Vector< unsigned >> &elements_to_be_refined)

void	p_refine_selected_elements (const Vector< Vector< PRefineableElement * >> &elements_to_be_refined_pt)

unsigned	unrefine_uniformly ()

unsigned	unrefine_uniformly (const unsigned &i_mesh)

void	p_unrefine_uniformly (DocInfo &doc_info)

void	p_unrefine_uniformly (const unsigned &i_mesh, DocInfo &doc_info)
	Do uniform p-unrefinement for submesh i_mesh without documentation. More...

void	adapt (unsigned &n_refined, unsigned &n_unrefined)

void	adapt ()

void	p_adapt (unsigned &n_refined, unsigned &n_unrefined)

void	p_adapt ()

void	adapt_based_on_error_estimates (unsigned &n_refined, unsigned &n_unrefined, Vector< Vector< double >> &elemental_error)

void	adapt_based_on_error_estimates (Vector< Vector< double >> &elemental_error)

void	get_all_error_estimates (Vector< Vector< double >> &elemental_error)

void	doc_errors (DocInfo &doc_info)
	Get max and min error for all elements in submeshes. More...

void	doc_errors ()
	Get max and min error for all elements in submeshes. More...

void	enable_info_in_newton_solve ()

void	disable_info_in_newton_solve ()
	Disable the output of information when in the newton solver. More...

Public Member Functions inherited from oomph::ExplicitTimeSteppableObject
	ExplicitTimeSteppableObject ()
	Empty constructor. More...

	ExplicitTimeSteppableObject (const ExplicitTimeSteppableObject &)=delete
	Broken copy constructor. More...

void	operator= (const ExplicitTimeSteppableObject &)=delete
	Broken assignment operator. More...

virtual	~ExplicitTimeSteppableObject ()
	Empty destructor. More...

virtual void	actions_before_explicit_stage ()

virtual void	actions_after_explicit_stage ()

Private Attributes
GeomObject *	Undeformed_midplane_pt
	Pointer to GeomObject that specifies the undeformed midplane. More...

Node *	Trace_node_pt
	First trace node. More...

Node *	Trace_node2_pt
	Second trace node. More...

Mesh *	Solid_mesh_pt
	Pointer to the solid mesh. More...

Mesh *	Displacement_control_mesh_pt
	Pointer to the mesh that contains the displacement control element. More...

unsigned	Nshell
	Number of shell elements. More...

Additional Inherited Members
Public Types inherited from oomph::Problem
typedef void(*	SpatialErrorEstimatorFctPt) (Mesh *&mesh_pt, Vector< double > &elemental_error)
	Function pointer for spatial error estimator. More...

typedef void(*	SpatialErrorEstimatorWithDocFctPt) (Mesh *&mesh_pt, Vector< double > &elemental_error, DocInfo &doc_info)
	Function pointer for spatial error estimator with doc. More...

Public Attributes inherited from oomph::Problem
bool	Shut_up_in_newton_solve

Static Public Attributes inherited from oomph::Problem
static bool	Suppress_warning_about_actions_before_read_unstructured_meshes

Protected Types inherited from oomph::Problem
enum	Assembly_method { Perform_assembly_using_vectors_of_pairs , Perform_assembly_using_two_vectors , Perform_assembly_using_maps , Perform_assembly_using_lists , Perform_assembly_using_two_arrays }
	Enumerated flags to determine which sparse assembly method is used. More...

Protected Member Functions inherited from oomph::Problem
unsigned	setup_element_count_per_dof ()

virtual void	sparse_assemble_row_or_column_compressed (Vector< int * > &column_or_row_index, Vector< int * > &row_or_column_start, Vector< double * > &value, Vector< unsigned > &nnz, Vector< double * > &residual, bool compressed_row_flag)

virtual void	actions_before_newton_convergence_check ()

virtual void	actions_before_newton_step ()

virtual void	actions_after_newton_step ()

virtual void	actions_before_implicit_timestep ()

virtual void	actions_after_implicit_timestep ()

virtual void	actions_after_implicit_timestep_and_error_estimation ()

virtual void	actions_before_explicit_timestep ()
	Actions that should be performed before each explicit time step. More...

virtual void	actions_after_explicit_timestep ()
	Actions that should be performed after each explicit time step. More...

virtual void	actions_before_read_unstructured_meshes ()

virtual void	actions_after_read_unstructured_meshes ()

virtual void	actions_after_change_in_global_parameter (double *const &parameter_pt)

virtual void	actions_after_change_in_bifurcation_parameter ()

virtual void	actions_after_parameter_increase (double *const &parameter_pt)

double &	dof_derivative (const unsigned &i)

double &	dof_current (const unsigned &i)

virtual void	set_initial_condition ()

virtual double	global_temporal_error_norm ()

unsigned	newton_solve_continuation (double *const &parameter_pt)

unsigned	newton_solve_continuation (double *const &parameter_pt, DoubleVector &z)

void	calculate_continuation_derivatives (double *const &parameter_pt)

void	calculate_continuation_derivatives (const DoubleVector &z)

void	calculate_continuation_derivatives_fd (double *const &parameter_pt)

bool	does_pointer_correspond_to_problem_data (double *const &parameter_pt)

void	set_consistent_pinned_values_for_continuation ()

Protected Attributes inherited from oomph::Problem
Vector< Problem * >	Copy_of_problem_pt

std::map< double *, bool >	Calculate_dparameter_analytic

bool	Calculate_hessian_products_analytic

LinearAlgebraDistribution *	Dof_distribution_pt

Vector< double * >	Dof_pt
	Vector of pointers to dofs. More...

DoubleVectorWithHaloEntries	Element_count_per_dof

double	Relaxation_factor

double	Newton_solver_tolerance

unsigned	Max_newton_iterations
	Maximum number of Newton iterations. More...

unsigned	Nnewton_iter_taken

Vector< double >	Max_res
	Maximum residuals at start and after each newton iteration. More...

double	Max_residuals

bool	Time_adaptive_newton_crash_on_solve_fail

bool	Jacobian_reuse_is_enabled
	Is re-use of Jacobian in Newton iteration enabled? Default: false. More...

bool	Jacobian_has_been_computed

bool	Problem_is_nonlinear

bool	Pause_at_end_of_sparse_assembly

bool	Doc_time_in_distribute

unsigned	Sparse_assembly_method

unsigned	Sparse_assemble_with_arrays_initial_allocation

unsigned	Sparse_assemble_with_arrays_allocation_increment

Vector< Vector< unsigned > >	Sparse_assemble_with_arrays_previous_allocation

double	Numerical_zero_for_sparse_assembly

double	FD_step_used_in_get_hessian_vector_products

bool	Mass_matrix_reuse_is_enabled

bool	Mass_matrix_has_been_computed

bool	Discontinuous_element_formulation

double	Minimum_dt
	Minimum desired dt: if dt falls below this value, exit. More...

double	Maximum_dt
	Maximum desired dt. More...

double	DTSF_max_increase

double	DTSF_min_decrease

double	Minimum_dt_but_still_proceed

bool	Scale_arc_length
	Boolean to control whether arc-length should be scaled. More...

double	Desired_proportion_of_arc_length
	Proportion of the arc-length to taken by the parameter. More...

double	Theta_squared

int	Sign_of_jacobian
	Storage for the sign of the global Jacobian. More...

double	Continuation_direction

double	Parameter_derivative
	Storage for the derivative of the global parameter wrt arc-length. More...

double	Parameter_current
	Storage for the present value of the global parameter. More...

bool	Use_continuation_timestepper
	Boolean to control original or new storage of dof stuff. More...

unsigned	Dof_derivative_offset

unsigned	Dof_current_offset

Vector< double >	Dof_derivative
	Storage for the derivative of the problem variables wrt arc-length. More...

Vector< double >	Dof_current
	Storage for the present values of the variables. More...

double	Ds_current
	Storage for the current step value. More...

unsigned	Desired_newton_iterations_ds

double	Minimum_ds
	Minimum desired value of arc-length. More...

bool	Bifurcation_detection
	Boolean to control bifurcation detection via determinant of Jacobian. More...

bool	Bisect_to_find_bifurcation
	Boolean to control wheter bisection is used to located bifurcation. More...

bool	First_jacobian_sign_change
	Boolean to indicate whether a sign change has occured in the Jacobian. More...

bool	Arc_length_step_taken
	Boolean to indicate whether an arc-length step has been taken. More...

bool	Use_finite_differences_for_continuation_derivatives

OomphCommunicator *	Communicator_pt
	The communicator for this problem. More...

bool	Always_take_one_newton_step

double	Timestep_reduction_factor_after_nonconvergence

bool	Keep_temporal_error_below_tolerance

Static Protected Attributes inherited from oomph::Problem
static ContinuationStorageScheme	Continuation_time_stepper
	Storage for the single static continuation timestorage object. More...

Constructor & Destructor Documentation

◆ ShellProblem() [1/5]

template<class ELEMENT >

ShellProblem< ELEMENT >::ShellProblem	(	const unsigned &	nx,
		const unsigned &	ny,
		const double &	lx,
		const double &	ly
	)

Constructor.

 {
  Mesh::Suppress_warning_about_empty_mesh_level_time_stepper_function=true;
  
  Use_continuation_timestepper=true;
  //Create the undeformed midplane object
  Undeformed_midplane_pt = new EllipticalTube(1.0,1.0);
  
  //Now create the mesh
  Solid_mesh_pt = new ShellMesh<ELEMENT>(nx,ny,lx,ly); 
  
  //Set the undeformed positions in the mesh
  solid_mesh_pt()->assign_undeformed_positions(Undeformed_midplane_pt);
  
  //Reorder the elements, since I know what's best for them....
  solid_mesh_pt()->element_reorder();
  
  //Apply boundary conditions to the ends of the tube
  unsigned n_ends = solid_mesh_pt()->nboundary_node(1);
  //Loop over the node
  for(unsigned i=0;i<n_ends;i++)
   {
    //Pin in the axial direction (prevents rigid body motions)
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(2);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(2);
    //Derived conditions
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(2,2);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(2,2);
  
    //------------------CLAMPING CONDITIONS----------------------
    //------Pin positions in the transverse directions-----------
    // Comment these out to get the ring case
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(0);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(0);
    //Derived conditions
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(2,0);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(2,0);
  
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(1);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(1);
    //Derived conditions
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(2,1);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(2,1);
    //----------------------------------------------------------
  
    // Set the axial gradients of the transverse coordinates to be
    // zero --- need to be enforced for ring or tube buckling
    //Pin dx/dz and dy/dz
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(1,0);
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(1,1);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(1,0);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(1,1);
    //Derived conditions
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(3,0);
    solid_mesh_pt()->boundary_node_pt(1,i)->pin_position(3,1);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(3,0);
    solid_mesh_pt()->boundary_node_pt(3,i)->pin_position(3,1);
  }
  
  //Now loop over the sides and apply symmetry conditions
  unsigned n_side = solid_mesh_pt()->nboundary_node(0);
  for(unsigned i=0;i<n_side;i++)
   {
    //At the side where theta is 0, pin in the y direction
    solid_mesh_pt()->boundary_node_pt(0,i)->pin_position(1);
    //Derived condition
    solid_mesh_pt()->boundary_node_pt(0,i)->pin_position(1,1);
    //Pin dx/dtheta and dz/dtheta
    solid_mesh_pt()->boundary_node_pt(0,i)->pin_position(2,0);
    solid_mesh_pt()->boundary_node_pt(0,i)->pin_position(2,2);
    //Pin the mixed derivative
    solid_mesh_pt()->boundary_node_pt(0,i)->pin_position(3,0);
    solid_mesh_pt()->boundary_node_pt(0,i)->pin_position(3,2);
  
    //At the side when theta is 0.5pi  pin in the x direction
    solid_mesh_pt()->boundary_node_pt(2,i)->pin_position(0);
    //Derived condition
    solid_mesh_pt()->boundary_node_pt(2,i)->pin_position(1,0);
    //Pin dy/dtheta and dz/dtheta
    solid_mesh_pt()->boundary_node_pt(2,i)->pin_position(2,1);
    solid_mesh_pt()->boundary_node_pt(2,i)->pin_position(2,2);
    //Pin the mixed derivative
    solid_mesh_pt()->boundary_node_pt(2,i)->pin_position(3,1);
    solid_mesh_pt()->boundary_node_pt(2,i)->pin_position(3,2);
  
    //Set an initial kick to make sure that we hop onto the
    //non-axisymmetric branch
    if((i>1) && (i<n_side-1))
     {
      solid_mesh_pt()->boundary_node_pt(0,i)->x(0) += 0.05;
      solid_mesh_pt()->boundary_node_pt(2,i)->x(1) -= 0.1;
     }
   }
  
  
  // Setup displacement control
  //---------------------------
  
  
  
 //  //Setup displacement control
 //  //Fix the displacement at the mid-point of the tube in the "vertical"
 //  //(y) direction.
 //  //Set the displacement control element (located halfway along the tube)
 // Disp_ctl_element_pt = dynamic_cast<ELEMENT*>(solid_mesh_pt()->element_pt(3*Ny-1));
 //  //The midpoint of the tube is located exactly half-way along the element
 //  Vector<double> s(2);  s[0] = 1.0; s[1] = 0.0; //s[1] = 0.5
 //  //Fix the displacement at this point in the y (1) direction
 //  Disp_ctl_element_pt->fix_displacement_for_displacement_control(s,1);
 //  //Set the pointer to the prescribed position
 //  Disp_ctl_element_pt->prescribed_position_pt() = &Prescribed_y; 
  
  
  
  // Choose element in which displacement control is applied: This
  // one is located halfway along the tube)
  SolidFiniteElement* controlled_element_pt=
   dynamic_cast<ELEMENT*>(solid_mesh_pt()->element_pt(3*ny-1));
  
  // Fix the displacement in the y (1) direction...
  unsigned controlled_direction=1;
  
  // Local coordinate of the control point within the controlled element
  Vector<double> s_displ_control(2);
  s_displ_control[0]=1.0;
  s_displ_control[1]=0.0;
  
  // Pointer to displacement control element
  DisplacementControlElement* displ_control_el_pt;
  
  // Build displacement control element
  displ_control_el_pt=
   new DisplacementControlElement(controlled_element_pt,
                                  s_displ_control,
                                  controlled_direction,
                                  &Global_Physical_Variables::Prescribed_y);
  
  // The constructor of the  DisplacementControlElement has created
  // a new Data object whose one-and-only value contains the
  // adjustable load: Use this Data object in the load function:
  Global_Physical_Variables::Pext_data_pt=displ_control_el_pt->
   displacement_control_load_pt();
  
  // Add the displacement-control element to the mesh
  Displacement_control_mesh_pt = new Mesh;
  Displacement_control_mesh_pt->add_element_pt(displ_control_el_pt); 
  
  //This mesh must be retained as halo on all processors
 #ifdef OOMPH_HAS_MPI
  Displacement_control_mesh_pt->set_keep_all_elements_as_halos();
 #endif
  
  
  // Complete build of shell elements
  //---------------------------------
  
  //Find number of shell elements in mesh
  unsigned n_element = nx*ny;
  
  //Explicit pointer to first element in the mesh
  ELEMENT* first_el_pt = dynamic_cast<ELEMENT*>(solid_mesh_pt()->element_pt(0));
  
  //Loop over the elements 
  for(unsigned e=0;e<n_element;e++)
   {
    //Cast to a shell element
    ELEMENT *el_pt = dynamic_cast<ELEMENT*>(solid_mesh_pt()->element_pt(e));
  
    //Set the load function
    el_pt->load_vector_fct_pt() = & Global_Physical_Variables::press_load;
  
    //Set the undeformed surface
    el_pt->undeformed_midplane_pt() = Undeformed_midplane_pt;
  
    //The external pressure is external data for all elements
    el_pt->add_external_data(Global_Physical_Variables::Pext_data_pt);
    
    //Pre-compute the second derivatives wrt Lagrangian coordinates
    //for the first element only
    if(e==0)
     {
      el_pt->pre_compute_d2shape_lagrangian_at_knots();
     }
    //Otherwise set the values to be the same as those in the first element
    //this is OK because the Lagrangian mesh is uniform.
    //
    else
     {
      el_pt->set_dshape_lagrangian_stored_from_element(first_el_pt);
     }
   }
  
  //Set pointers to two trace nodes, used for output
  //in the middle of the shell so available on both processors!
  Trace_node_pt = solid_mesh_pt()->finite_element_pt(2*ny-1)->node_pt(3);
  Trace_node2_pt = solid_mesh_pt()->finite_element_pt(ny)->node_pt(1);
  
  //Now add the two submeshes
  this->add_sub_mesh(Solid_mesh_pt);
  this->add_sub_mesh(Displacement_control_mesh_pt);
  this->build_global_mesh();
  
  // Do equation numbering
  cout << std::endl;
  cout << "------------------DISPLACEMENT CONTROL--------------------" 
       << std::endl;
  cout << "# of dofs " << assign_eqn_numbers() << std::endl;
  cout << "----------------------------------------------------------" 
       << std::endl;
  cout << std::endl;
  
 }

References oomph::Mesh::add_element_pt(), e(), i, Mesh_Parameters::lx, Mesh_Parameters::ly, Mesh_Parameters::nx, Mesh_Parameters::ny, Global_Physical_Variables::Pext_data_pt, Global_Physical_Variables::Prescribed_y, and Global_Physical_Variables::press_load().

◆ ~ShellProblem() [1/2]

template<class ELEMENT >

ShellProblem< ELEMENT >::~ShellProblem ( )

inline

Destructor: delete mesh, geometric object.

   {
    delete Displacement_control_mesh_pt;
    delete Solid_mesh_pt;
    delete Undeformed_midplane_pt;
   }

References ShellProblem< ELEMENT >::Displacement_control_mesh_pt, ShellProblem< ELEMENT >::Solid_mesh_pt, and ShellProblem< ELEMENT >::Undeformed_midplane_pt.

◆ ShellProblem() [2/5]

template<class ELEMENT >

ShellProblem< ELEMENT >::ShellProblem	(	const unsigned &	nx,
		const unsigned &	ny,
		const double &	lx,
		const double &	ly,
		const unsigned &	problem_id
	)

Constructor.

 {
  //Create the undeformed midplane object
  Undeformed_midplane_pt = new EllipticalTube(1.0,1.0);
  
  //Now create the mesh
  Problem::mesh_pt() = new CircularCylindricalShellMesh<ELEMENT>(nx,ny,lx,ly); 
  
  // Store number of genuine shell elements
  Nshell=mesh_pt()->nelement();
  
  //Set the undeformed positions in the mesh
  mesh_pt()->assign_undeformed_positions(Undeformed_midplane_pt);
  
  //Reorder the elements, since I know what's best for them....
  mesh_pt()->element_reorder();
  
  
  
  //Loop over the nodes at the ends of the tube and pin the positions
  //-----------------------------------------------------------------
  // (All constraints apply at all nodes on boundaries 1 and 3)
  //-----------------------------------------------------------
  unsigned n_node_at_ends = mesh_pt()->nboundary_node(1);
  for(unsigned j=0;j<n_node_at_ends;j++)
   {
  
    // Loop over all three displacement components
    for (unsigned i=0;i<3;i++)
     {
      // Pin positions for all s_1 (along tube circumference)
      mesh_pt()->boundary_node_pt(1,j)->pin_position(i);
      mesh_pt()->boundary_node_pt(3,j)->pin_position(i);
  
      // ...implying that dr/ds_1=0, too:  [pin_position() takes type (2) and 
      // direction (i)]
      mesh_pt()->boundary_node_pt(1,j)->pin_position(2,i);
      mesh_pt()->boundary_node_pt(3,j)->pin_position(2,i);
     }
   
    
    // Use symmetry conditions at ends?
    //--------------------------------
    if (problem_id==2)
     {
      // Pin the derivative (into the shell) of the x-position  for all 
      // s_1 (along tube circumference)[pin_position() takes type (1) 
      // and direction(0)]
      mesh_pt()->boundary_node_pt(1,j)->pin_position(1,0);
      mesh_pt()->boundary_node_pt(3,j)->pin_position(1,0);
      
      // ...implying that d^2x/ds_0 ds_1=0, too:  [pin_position() takes 
      // type (3) and direction (0)]
      mesh_pt()->boundary_node_pt(1,j)->pin_position(3,0);
      mesh_pt()->boundary_node_pt(3,j)->pin_position(3,0);
      
      // Pin the derivative (into the shell) of the y-position  for all 
      // s_1 (along tube circumference)[pin_position() takes type (1) 
      // and direction(1)]
      mesh_pt()->boundary_node_pt(1,j)->pin_position(1,1);
      mesh_pt()->boundary_node_pt(3,j)->pin_position(1,1);
      
      // ...implying that d^2y/ds_0 ds_1=0, too:  [pin_position() takes 
      // type (3) and direction (1)]
      mesh_pt()->boundary_node_pt(1,j)->pin_position(3,1);
      mesh_pt()->boundary_node_pt(3,j)->pin_position(3,1);
     }
  }
  
  
  //Now loop over the sides and apply symmetry conditions
  //-----------------------------------------------------
  unsigned n_node_at_side = mesh_pt()->nboundary_node(0);
  for(unsigned j=0;j<n_node_at_side;j++)
   {
  
    //At the side where theta is 0 (boundary 0), pin in the y displacement
    //--------------------------------------------------------------------
  
    // y=0 for all s_0 (along the tube)...
    mesh_pt()->boundary_node_pt(0,j)->pin_position(1);
  
    // ...implying that dy/ds_0=0 too: [pin_position() takes type (1) and 
    // direction(1)]
    mesh_pt()->boundary_node_pt(0,j)->pin_position(1,1);
  
  
    //At the side where theta is 0 (boundary 0), apply symm cond for x and z
    //----------------------------------------------------------------------
  
    // d{x,z}/ds_1=0 for all s_0 (along the tube) because of symmetry...
    // [pin_position() takes type (2) and direction {0,2}]
    mesh_pt()->boundary_node_pt(0,j)->pin_position(2,0);
    mesh_pt()->boundary_node_pt(0,j)->pin_position(2,2);
  
    // ...implying that d^2{x,z}/ds_0 ds_1=0 too: [pin_position() takes 
    // type (3) and direction {0,2}]
    mesh_pt()->boundary_node_pt(0,j)->pin_position(3,0);
    mesh_pt()->boundary_node_pt(0,j)->pin_position(3,2);
  
  
    //At the side where theta is pi/2 (boundary 2), pin in the x displacement
    //--------------------------------------------------------------------
  
    // x=0 for all s_0 (along the tube)...
    mesh_pt()->boundary_node_pt(2,j)->pin_position(0);
  
    // ...implying that dx/ds_0=0 too: [pin_position() takes type (1) and 
    // direction(0)]
    mesh_pt()->boundary_node_pt(2,j)->pin_position(1,0);
  
  
    //At the side where theta is pi/2 (boundary 2), apply symm cond for y and z
    //----------------------------------------------------------------------
  
    // d{y,z}/ds_1=0 for all s_0 (along the tube) because of symmetry...
    // [pin_position() takes type (2) and direction {1,2}]
    mesh_pt()->boundary_node_pt(2,j)->pin_position(2,1);
    mesh_pt()->boundary_node_pt(2,j)->pin_position(2,2);
  
    // ...implying that d^2{y,z}/ds_0 ds_1=0 too: [pin_position() takes 
    // type (3) and direction {1,2}]
    mesh_pt()->boundary_node_pt(2,j)->pin_position(3,1);
    mesh_pt()->boundary_node_pt(2,j)->pin_position(3,2);
  
   }
  
  
  // Setup displacement control
  //---------------------------
  
  // Choose element in which displacement control is applied: This
  // one is located about halfway along the tube -- remember that
  // we've renumbered the elements!
  unsigned nel_ctrl=0;
  Vector<double> s_displ_control(2);
  
  // Even/odd number of elements in axial direction
  if (nx%2==1)
   {
    nel_ctrl=unsigned(floor(0.5*double(nx))+1.0)*ny-1;
    s_displ_control[0]=0.0;
    s_displ_control[1]=1.0;
   }
  else
   {
    nel_ctrl=unsigned(floor(0.5*double(nx))+1.0)*ny-1;
    s_displ_control[0]=-1.0;
    s_displ_control[1]=1.0;
   }
  
  // Controlled element
  SolidFiniteElement* controlled_element_pt=
   dynamic_cast<ELEMENT*>(mesh_pt()->element_pt(nel_ctrl));
  
  
  // Fix the displacement in the y (1) direction...
  unsigned controlled_direction=1;
  
  // Pointer to displacement control element
  DisplacementControlElement* displ_control_el_pt;
  
  // Build displacement control element
  displ_control_el_pt=
   new DisplacementControlElement(controlled_element_pt,
                                  s_displ_control,
                                  controlled_direction,
                                  &Global_Physical_Variables::Prescribed_y);
  
  
  // Doc control point
  Vector<double> xi(2);
  Vector<double> x(3);
  controlled_element_pt->interpolated_xi(s_displ_control,xi);
  controlled_element_pt->interpolated_x(s_displ_control,x);
  std::cout << std::endl;
  std::cout << "Controlled element: " << nel_ctrl << std::endl;
  std::cout << "Displacement control applied at xi = (" 
            << xi[0] << ", " << xi[1] << ")" << std::endl;
  std::cout << "Corresponding to                x  = (" 
            << x[0] << ", " << x[1] << ", " << x[2] << ")" << std::endl;
  
  
  // The constructor of the  DisplacementControlElement has created
  // a new Data object whose one-and-only value contains the
  // adjustable load: Use this Data object in the load function:
  Global_Physical_Variables::Pext_data_pt=displ_control_el_pt->
   displacement_control_load_pt();
  
  // Add the displacement-control element to the mesh
  mesh_pt()->add_element_pt(displ_control_el_pt); 
  
  
  
  // Complete build of shell elements
  //---------------------------------
  
  //Find number of shell elements in mesh
  unsigned n_element = nx*ny;
  
  //Explicit pointer to first element in the mesh
  ELEMENT* first_el_pt = dynamic_cast<ELEMENT*>(mesh_pt()->element_pt(0));
  
  //Loop over the elements 
  for(unsigned e=0;e<n_element;e++)
   {
    //Cast to a shell element
    ELEMENT *el_pt = dynamic_cast<ELEMENT*>(mesh_pt()->element_pt(e));
  
    //Set the load function
    el_pt->load_vector_fct_pt() = & Global_Physical_Variables::press_load;
  
    //Set the undeformed surface
    el_pt->undeformed_midplane_pt() = Undeformed_midplane_pt;
  
    //The external pressure is external data for all elements
    el_pt->add_external_data(Global_Physical_Variables::Pext_data_pt);
    
    //Pre-compute the second derivatives wrt Lagrangian coordinates
    //for the first element only
    if(e==0)
     {
      el_pt->pre_compute_d2shape_lagrangian_at_knots();
     }
  
    //Otherwise set the values to be the same as those in the first element
    //this is OK because the Lagrangian mesh is uniform.
    else
     {
      el_pt->set_dshape_lagrangian_stored_from_element(first_el_pt);
     }
   }
  
  //Set pointers to two trace nodes, used for output
  Trace_node_pt = mesh_pt()->finite_element_pt(2*ny-1)->node_pt(3);
  Trace_node2_pt = mesh_pt()->finite_element_pt(ny)->node_pt(1);
  
  // Attach boundary condition elements that enforce clamping condition
  if (problem_id==0)
   {
    create_bc_elements(1);
    create_bc_elements(3);
   }
  
  
  // Do equation numbering
  cout << std::endl;
  cout << "# of dofs " << assign_eqn_numbers() << std::endl;
  cout << std::endl;
  
 }

References e(), Eigen::bfloat16_impl::floor(), i, oomph::FiniteElement::interpolated_x(), oomph::SolidFiniteElement::interpolated_xi(), j, Mesh_Parameters::lx, Mesh_Parameters::ly, Mesh_Parameters::nx, Mesh_Parameters::ny, Global_Physical_Variables::Pext_data_pt, Global_Physical_Variables::Prescribed_y, Global_Physical_Variables::press_load(), and plotDoE::x.

◆ ShellProblem() [3/5]

template<class ELEMENT >

ShellProblem< ELEMENT >::ShellProblem	(	const unsigned &	nx,
		const unsigned &	ny,
		const double &	lx,
		const double &	ly
	)

Constructor.

◆ ShellProblem() [4/5]

template<class ELEMENT >

ShellProblem< ELEMENT >::ShellProblem	(	const unsigned &	nx,
		const unsigned &	ny,
		const double &	lx,
		const double &	ly
	)

Constructor.

◆ ~ShellProblem() [2/2]

template<class ELEMENT >

ShellProblem< ELEMENT >::~ShellProblem ( )

inline

Destructor: delete mesh, geometric object.

   {
    delete Problem::mesh_pt();
    delete Undeformed_midplane_pt;
   }

References ShellProblem< ELEMENT >::Undeformed_midplane_pt.

◆ ShellProblem() [5/5]

template<class ELEMENT >

ShellProblem< ELEMENT >::ShellProblem	(	const unsigned &	nx,
		const unsigned &	ny,
		const double &	lx,
		const double &	ly
	)

Constructor.

Member Function Documentation

◆ actions_after_distribute()

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_after_distribute ( )

inline

Actions after problem distribution. Need to reset the pointer to stored shape functions on all processors

   {
    //If there are any solid elements calculate and store the 
    //shape functions in the first element
    unsigned n_solid_element = this->solid_mesh_pt()->nelement();
  
    //Explicit pointer to first element in the mesh if there is one
    ELEMENT* first_el_pt =0;
    if(n_solid_element > 0) 
     {
      first_el_pt = 
       dynamic_cast<ELEMENT*>(solid_mesh_pt()->element_pt(0));
     }
    
    //Loop over all elements
    for(unsigned e=0;e<n_solid_element;e++)
     {
      ELEMENT* el_pt = dynamic_cast<ELEMENT*>(solid_mesh_pt()->element_pt(e));
      
      //Pre-compute the second derivatives wrt Lagrangian coordinates
      //for the first element only
      if(e==0)
       {
        el_pt->pre_compute_d2shape_lagrangian_at_knots();
       }
      //Otherwise set the values to be the same as those in the first element
      //this is OK because the Lagrangian mesh is uniform.
        //
        else
         {
          el_pt->set_dshape_lagrangian_stored_from_element(first_el_pt);
         }
     }
   }

References e(), and ShellProblem< ELEMENT >::solid_mesh_pt().

◆ actions_after_newton_solve() [1/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_after_newton_solve ( )

inlinevirtual

Actions after solve empty.

Reimplemented from oomph::Problem.

338 {}

◆ actions_after_newton_solve() [2/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_after_newton_solve ( )

inlinevirtual

Actions after solve empty.

Reimplemented from oomph::Problem.

102 {}

◆ actions_after_newton_solve() [3/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_after_newton_solve ( )

inlinevirtual

Actions after solve empty.

Reimplemented from oomph::Problem.

228 {}

◆ actions_after_newton_solve() [4/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_after_newton_solve ( )

inlinevirtual

Actions after solve empty.

Reimplemented from oomph::Problem.

337 {}

◆ actions_after_newton_solve() [5/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_after_newton_solve ( )

inlinevirtual

Actions after solve empty.

Reimplemented from oomph::Problem.

107 {}

◆ actions_before_newton_solve() [1/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_before_newton_solve ( )

inlinevirtual

Actions before solve empty.

Reimplemented from oomph::Problem.

341 {}

◆ actions_before_newton_solve() [2/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_before_newton_solve ( )

inlinevirtual

Actions before solve empty.

Reimplemented from oomph::Problem.

105 {}

◆ actions_before_newton_solve() [3/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_before_newton_solve ( )

inlinevirtual

Actions before solve empty.

Reimplemented from oomph::Problem.

231 {}

◆ actions_before_newton_solve() [4/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_before_newton_solve ( )

inlinevirtual

Actions before solve empty.

Reimplemented from oomph::Problem.

340 {}

◆ actions_before_newton_solve() [5/5]

template<class ELEMENT >

void ShellProblem< ELEMENT >::actions_before_newton_solve ( )

inlinevirtual

Actions before solve empty.

Reimplemented from oomph::Problem.

110 {}

◆ create_bc_elements()

template<class ELEMENT >

void ShellProblem< ELEMENT >::create_bc_elements ( const unsigned & b )

Create clamping bc face elements on the b-th boundary of the Mesh.

 {
  // How many bulk elements are adjacent to boundary b?
  unsigned n_element = mesh_pt()->nboundary_element(b);
  
  std::cout << "Creating " << n_element 
            << " boundary condition elements"  << std::endl;
  
  
  // Loop over the bulk elements adjacent to boundary b?
  for(unsigned e=0;e<n_element;e++)
   {
    // Get pointer to the bulk element that is adjacent to boundary b
    ELEMENT* bulk_elem_pt = dynamic_cast<ELEMENT*>(
     mesh_pt()->boundary_element_pt(b,e));
    
    //What is the index of the face of element e along boundary b
    int face_index = mesh_pt()->face_index_at_boundary(b,e);
  
    // Build the corresponding bc element
    ClampedHermiteShellBoundaryConditionElement* flux_element_pt = new 
    ClampedHermiteShellBoundaryConditionElement(bulk_elem_pt,face_index);
  
    //Add the bc element to the mesh
    mesh_pt()->add_element_pt(flux_element_pt);
  
   } //end of loop over bulk elements adjacent to boundary b
  
 }

References b, and e().

◆ doc_solution()

template<class ELEMENT >

void ShellProblem< ELEMENT >::doc_solution	(	DocInfo &	doc_info,
		ofstream &	trace_file
	)

Doc solution.

 {
  
  ofstream some_file;
  char filename[100];
  
  // Loop over shell all elements to get global kinetic and potential energy
  double global_kin=0;
  double global_pot=0;
  double rate_of_work=0;
  double pot,kin;
  for (unsigned ielem=0;ielem<Nshell;ielem++)
   {
    ELEMENT* el_pt=dynamic_cast<ELEMENT*>(mesh_pt()->element_pt(ielem));
    el_pt->get_energy(pot,kin);
    global_kin+=kin;
    global_pot+=pot;
    rate_of_work+=el_pt->load_rate_of_work();
   }
  
  //Output the pressure (on the bending scale)
  trace_file 
   << time_pt()->time() << " " 
   << Trace_node_pt->x(1) << " " 
   << Trace_node2_pt->x(0) << " "
   << rate_of_work << " " 
   << global_pot << " " 
   << global_kin << " " 
   << global_kin+global_pot << " "  
 //  << Global_Physical_Variables::external_pressure()/(pow(0.05,3)/12.0) << " "
   << Global_Physical_Variables::Pcos/(pow(0.05,3)/12.0) << " "
   << std::endl;
  
  //Output the tube shape 
  
  sprintf(filename,"%s/shell%i.dat",doc_info.directory().c_str(),
          doc_info.number());
  some_file.open(filename);
  for (unsigned e=0;e<Nshell;e++)
   {
    mesh_pt()->finite_element_pt(e)->output(some_file,15);
   }
  some_file.close();
  
 //  //Output the Lagrange multipliers
 //  sprintf(filename,"%s/lagrange_multiplier%i.dat",
 //          doc_info.directory().c_str(),
 //          doc_info.number());
 //  some_file.open(filename);
 //  unsigned n_el=mesh_pt()->nelement();
 //  for (unsigned e=Nshell+1;e<n_el;e++)
 //   {
 //    mesh_pt()->finite_element_pt(e)->output(some_file,15);
 //   }
 //  some_file.close();
  
 }

References oomph::DocInfo::directory(), e(), MergeRestartFiles::filename, oomph::DocInfo::number(), Global_Physical_Variables::Pcos, and Eigen::bfloat16_impl::pow().

◆ mesh_pt() [1/4]

template<class ELEMENT >

CircularCylindricalShellMesh<ELEMENT>* ShellProblem< ELEMENT >::mesh_pt ( )

inline

Overload Access function for the mesh.

   {return 
     dynamic_cast<CircularCylindricalShellMesh<ELEMENT>*>(Problem::mesh_pt());
   }

◆ mesh_pt() [2/4]

template<class ELEMENT >

ShellMesh<ELEMENT>* ShellProblem< ELEMENT >::mesh_pt ( )

inline

Overload Access function for the mesh.

225 {return dynamic_cast<ShellMesh<ELEMENT>*>(Problem::mesh_pt());}

◆ mesh_pt() [3/4]

template<class ELEMENT >

ShellMesh<ELEMENT>* ShellProblem< ELEMENT >::mesh_pt ( )

inline

Overload Access function for the mesh.

334 {return dynamic_cast<ShellMesh<ELEMENT>*>(Problem::mesh_pt());}

◆ mesh_pt() [4/4]

template<class ELEMENT >

CircularCylindricalShellMesh<ELEMENT>* ShellProblem< ELEMENT >::mesh_pt ( )

inline

Overload Access function for the mesh.

   {return 
     dynamic_cast<CircularCylindricalShellMesh<ELEMENT>*>(Problem::mesh_pt());
   }

◆ run_it()

template<class ELEMENT >

void ShellProblem< ELEMENT >::run_it

Do parameter study.

Run it...

 {
  
  ofstream some_file;
  char filename[100];
  
  //Increase the maximum number of Newton iterations.
  //Finding the first buckled solution requires a large(ish) number
  //of Newton steps -- shells are just a bit twitchy
  Max_newton_iterations = 40;
  Max_residuals=1.0e6;
  
  // Label for output
  DocInfo doc_info;
  
  // Output directory
  doc_info.set_directory("RESLT");
  
   //Open an output trace file
  sprintf(filename,"%s/trace.dat",doc_info.directory().c_str());
  ofstream trace_file(filename);
  trace_file << "VARIABLES=\"time\",\"R_1\",\"R_2\",\"rate of work of load\",\"E_p_o_t\",\"E_k_i_n\",\"E_k_i_n + E_p_o_t\",\"p_c_o_s\"" << std::endl;
  trace_file << "ZONE" << std::endl;
  
 // Set initial timestep
  double dt=1.0; 
  
  // Assign impulsive start
  assign_initial_values_impulsive(dt);
  
   // Output initial data
  doc_solution(doc_info,trace_file);
  
  
  
  
  // Reduce number of timesteps for validation
  unsigned nstep=200;
  if (CommandLineArgs::Argc>1) nstep=4;
  
  
  // Time integration loop
  for(unsigned i=1;i<=nstep;i++)
   {
    
    // Switch off perturbation pressure 
    if (time_pt()->time()>Global_Physical_Variables::T_pcos_end) 
     {
      // Perturbation pressure
      Global_Physical_Variables::Pcos=0.0; 
     }
    
    // Solve
    unsteady_newton_solve(dt);
    
    // Doc solution
    doc_info.number()++;
    doc_solution(doc_info,trace_file);
    
   }
  
  //Close the trace file
  trace_file.close();
  
 }

References oomph::CommandLineArgs::Argc, oomph::DocInfo::directory(), MergeRestartFiles::filename, i, oomph::Locate_zeta_helpers::Max_newton_iterations, oomph::DocInfo::number(), Global_Physical_Variables::Pcos, oomph::DocInfo::set_directory(), and Global_Physical_Variables::T_pcos_end.

◆ solid_mesh_pt()

template<class ELEMENT >

ShellMesh<ELEMENT>* ShellProblem< ELEMENT >::solid_mesh_pt ( )

inline

Overload Access function for the mesh.

335 {return dynamic_cast<ShellMesh<ELEMENT>*>(this->Solid_mesh_pt);}

References ShellProblem< ELEMENT >::Solid_mesh_pt.

Referenced by ShellProblem< ELEMENT >::actions_after_distribute().

◆ solve() [1/4]

template<class ELEMENT >

void ShellProblem< ELEMENT >::solve

 {
  
  //Increase the maximum number of Newton iterations.
  //Finding the first buckled solution requires a large(ish) number
  //of Newton steps -- shells are just a bit twitchy
  Max_newton_iterations = 40;
  
  //Open an output trace file
  char filename[100];
  sprintf(filename,"trace_on_proc%i.dat",this->communicator_pt()->my_rank());
  ofstream trace(filename);
  
  //Change in displacemenet
  double disp_incr = 0.05;
  
  //Gradually compress the tube by decreasing the value of the prescribed
  //position from 1 to zero in steps of 0.05 initially and then 0.1
  for(unsigned i=1;i<13;i++)
   {
    //By the time we reach the second time round increase the incremenet
    if(i==3) {disp_incr = 0.1;}
    //Reduce prescribed y by our chosen increment
    Global_Physical_Variables::Prescribed_y -= disp_incr;
  
    cout << std::endl << "Increasing displacement: Prescribed_y is " 
         << Global_Physical_Variables::Prescribed_y << std::endl;
  
    // Solve
    newton_solve();
    
    //Output the pressure
    trace << Global_Physical_Variables::external_pressure()/(pow(0.05,3)/12.0)
          << " "
          //Position of first trace node
          << Trace_node_pt->x(0) << " " << Trace_node_pt->x(1) << " " 
           //Position of second trace node
          << Trace_node2_pt->x(0) << " " << Trace_node2_pt->x(1) << std::endl;
   }
  
  //Close the trace file
  trace.close();
  
  //Output the tube shape in the most strongly collapsed configuration
  sprintf(filename,"final_shape_on_proc%i.dat",
          this->communicator_pt()->my_rank());
  ofstream file(filename);
  solid_mesh_pt()->output(file,5);
  file.close();
  
  
  //Switch from displacement control to arc-length continuation and
  //trace back up the solution branch
  
  //Now pin the external pressure
  Global_Physical_Variables::Pext_data_pt->pin(0);
  
  //Re-assign the equation numbers
  cout << std::endl;
  cout << "-----------------ARC-LENGTH CONTINUATION --------------" 
       << std::endl;
  cout << "# of dofs " << assign_eqn_numbers() << std::endl;
  cout << "-------------------------------------------------------" 
       << std::endl;
  cout << std::endl;
  
  //Set the maximum number of Newton iterations to something more reasonable
  Max_newton_iterations=6;
  
  //Set the desired number of Newton iterations per arc-length step
  Desired_newton_iterations_ds=3;
  
  //Set the proportion of the arc length
  Desired_proportion_of_arc_length = 0.2;
  
  //Set an initial value for the step size
  double ds = -0.5;
  
  //Open a different trace file
  sprintf(filename,"trace_disp_on_proc%i.dat",
          this->communicator_pt()->my_rank());
  trace.open(filename);
  //Take fifteen continuation steps
  for(unsigned i=0;i<15;i++)
    {
     ds = arc_length_step_solve(
      Global_Physical_Variables::Pext_data_pt,0,ds);
     
     //Output the pressure
     trace << Global_Physical_Variables::external_pressure()/(pow(0.05,3)/12.0)
           << " "
           //Position of first trace node
           << Trace_node_pt->x(0) << " " << Trace_node_pt->x(1) << " " 
           //Position of second trace node
           << Trace_node2_pt->x(0) << " " << Trace_node2_pt->x(1) << std::endl;
    }
  
  //Close the trace file
  trace.close();
  
 }

References Global_Physical_Variables::external_pressure(), MergeRestartFiles::filename, i, oomph::Locate_zeta_helpers::Max_newton_iterations, Global_Physical_Variables::Pext_data_pt, oomph::Data::pin(), Eigen::ArrayBase< Derived >::pow(), and Global_Physical_Variables::Prescribed_y.

◆ solve() [2/4]

template<class ELEMENT >

void ShellProblem< ELEMENT >::solve ( )

◆ solve() [3/4]

template<class ELEMENT >

void ShellProblem< ELEMENT >::solve ( )

◆ solve() [4/4]

template<class ELEMENT >

void ShellProblem< ELEMENT >::solve ( string & dir_name )

Do parameter study.

 {
  ofstream some_file;
  char filename[100];
  
  //Increase the maximum number of Newton iterations.
  //Finding the first buckled solution requires a large(ish) number
  //of Newton steps -- shells are just a bit twitchy
  Max_newton_iterations = 40;
  Max_residuals=1.0e6;
  
  // Label for output
  DocInfo doc_info;
  
  // Output directory
  doc_info.set_directory(dir_name);
  
   //Open an output trace file
  sprintf(filename,"%s/trace.dat",doc_info.directory().c_str());
  ofstream trace_file(filename);
  trace_file << "VARIABLES=\"p_e_x_t\",\"R_1\",\"R_2\"" << std::endl;
  trace_file << "ZONE" << std::endl;
  
  //Gradually compress the tube by decreasing the value of the prescribed
  //position 
  for(unsigned i=1;i<11;i++)
   {
  
    Global_Physical_Variables::Prescribed_y -= 0.1;
  
    // Solve
    newton_solve();   
  
    //Output the pressure (on the bending scale)
    trace_file 
     << Global_Physical_Variables::external_pressure()/(pow(0.05,3)/12.0) << " "
     << Trace_node_pt->x(1) << " " 
     << Trace_node2_pt->x(0) << std::endl;
    
    
    //Output the tube shape 
    sprintf(filename,"%s/shell%i.dat",doc_info.directory().c_str(),
            doc_info.number());
    some_file.open(filename);
    for (unsigned e=0;e<Nshell;e++)
     {
      mesh_pt()->finite_element_pt(e)->output(some_file,15);
     }
    some_file.close();
  
    //Output the Lagrange multipliers
    sprintf(filename,"%s/lagrange_multiplier%i.dat",
            doc_info.directory().c_str(),
            doc_info.number());
    some_file.open(filename);
    unsigned n_el=mesh_pt()->nelement();
    for (unsigned e=Nshell+1;e<n_el;e++)
     {
      mesh_pt()->finite_element_pt(e)->output(some_file,15);
     }
    some_file.close();
  
    // Increment counter for output files
    doc_info.number()++;
  
    // Reset perturbation
    Global_Physical_Variables::Pcos=0.0;
   }
  
  //Close the trace file
  trace_file.close();
  
 }

References oomph::DocInfo::directory(), e(), Global_Physical_Variables::external_pressure(), MergeRestartFiles::filename, i, oomph::Locate_zeta_helpers::Max_newton_iterations, oomph::DocInfo::number(), Global_Physical_Variables::Pcos, Eigen::bfloat16_impl::pow(), Global_Physical_Variables::Prescribed_y, and oomph::DocInfo::set_directory().

Member Data Documentation

◆ Displacement_control_mesh_pt

template<class ELEMENT >

Mesh* ShellProblem< ELEMENT >::Displacement_control_mesh_pt

private

Pointer to the mesh that contains the displacement control element.

Referenced by ShellProblem< ELEMENT >::~ShellProblem().

◆ Nshell

template<class ELEMENT >

unsigned ShellProblem< ELEMENT >::Nshell

private

Number of shell elements.

◆ Solid_mesh_pt

template<class ELEMENT >

Mesh* ShellProblem< ELEMENT >::Solid_mesh_pt

private

Pointer to the solid mesh.

Referenced by ShellProblem< ELEMENT >::solid_mesh_pt(), and ShellProblem< ELEMENT >::~ShellProblem().

◆ Trace_node2_pt

template<class ELEMENT >

Node * ShellProblem< ELEMENT >::Trace_node2_pt

private

Second trace node.

◆ Trace_node_pt

template<class ELEMENT >

Node * ShellProblem< ELEMENT >::Trace_node_pt

private

First trace node.

◆ Undeformed_midplane_pt

template<class ELEMENT >

GeomObject * ShellProblem< ELEMENT >::Undeformed_midplane_pt

private

Pointer to GeomObject that specifies the undeformed midplane.

Referenced by ShellProblem< ELEMENT >::~ShellProblem().

The documentation for this class was generated from the following files:

Public Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ ShellProblem() [1/5]

◆ ~ShellProblem() [1/2]

◆ ShellProblem() [2/5]

◆ ShellProblem() [3/5]

◆ ShellProblem() [4/5]

◆ ~ShellProblem() [2/2]

◆ ShellProblem() [5/5]

Member Function Documentation

◆ actions_after_distribute()

◆ actions_after_newton_solve() [1/5]

◆ actions_after_newton_solve() [2/5]

◆ actions_after_newton_solve() [3/5]

◆ actions_after_newton_solve() [4/5]

◆ actions_after_newton_solve() [5/5]

◆ actions_before_newton_solve() [1/5]

◆ actions_before_newton_solve() [2/5]

◆ actions_before_newton_solve() [3/5]

◆ actions_before_newton_solve() [4/5]

◆ actions_before_newton_solve() [5/5]

◆ create_bc_elements()

◆ doc_solution()

◆ mesh_pt() [1/4]

◆ mesh_pt() [2/4]

◆ mesh_pt() [3/4]

◆ mesh_pt() [4/4]

◆ run_it()

◆ solid_mesh_pt()

◆ solve() [1/4]

◆ solve() [2/4]

◆ solve() [3/4]

◆ solve() [4/4]

Member Data Documentation

◆ Displacement_control_mesh_pt

◆ Nshell

◆ Solid_mesh_pt

◆ Trace_node2_pt

◆ Trace_node_pt

◆ Undeformed_midplane_pt