GRINS::ElasticCable< StressStrainLaw > Class Template Reference

#include <elastic_cable.h>

Inheritance diagram for GRINS::ElasticCable< StressStrainLaw >:

Collaboration diagram for GRINS::ElasticCable< StressStrainLaw >:

Public Member Functions
	ElasticCable (const PhysicsName &physics_name, const GetPot &input, bool is_compressible)
virtual	~ElasticCable ()
virtual void	register_postprocessing_vars (const GetPot &input, PostProcessedQuantities< libMesh::Real > &postprocessing)
	Register postprocessing variables for ElasticCable. More...
virtual void	element_time_derivative (bool compute_jacobian, AssemblyContext &context)
	Time dependent part(s) of physics for element interiors. More...
virtual void	mass_residual (bool compute_jacobian, AssemblyContext &context)
	Mass matrix part(s) for element interiors. All boundary terms lie within the time_derivative part. More...
virtual void	compute_postprocessed_quantity (unsigned int quantity_index, const AssemblyContext &context, const libMesh::Point &point, libMesh::Real &value)
	Compute the registered postprocessed quantities. More...
Public Member Functions inherited from GRINS::ElasticCableBase< StressStrainLaw >
	ElasticCableBase (const GRINS::PhysicsName &physics_name, const GetPot &input, bool is_compressible)
virtual	~ElasticCableBase ()
Public Member Functions inherited from GRINS::ElasticCableAbstract
	ElasticCableAbstract (const GRINS::PhysicsName &physics_name, const GetPot &input)
virtual	~ElasticCableAbstract ()
virtual void	init_context (AssemblyContext &context)
	Initialize context for added physics variables. More...
Public Member Functions inherited from GRINS::SolidMechanicsAbstract
	SolidMechanicsAbstract (const GRINS::PhysicsName &physics_name, const GetPot &input)
virtual	~SolidMechanicsAbstract ()
virtual void	set_time_evolving_vars (libMesh::FEMSystem *system)
	Set which variables are time evolving. More...
Public Member Functions inherited from GRINS::Physics
	Physics (const GRINS::PhysicsName &physics_name, const GetPot &input)
virtual	~Physics ()
virtual void	init_variables (libMesh::FEMSystem *)
	Initialize variables for this physics. More...
virtual bool	enabled_on_elem (const libMesh::Elem *elem)
	Find if current physics is active on supplied element. More...
void	set_is_steady (bool is_steady)
	Sets whether this physics is to be solved with a steady solver or not. More...
bool	is_steady () const
	Returns whether or not this physics is being solved with a steady solver. More...
virtual void	auxiliary_init (MultiphysicsSystem &system)
	Any auxillary initialization a Physics class may need. More...
virtual void	preassembly (MultiphysicsSystem &)
	Perform any necessary setup before element assembly begins. More...
virtual void	reinit (MultiphysicsSystem &)
	Any reinitialization that needs to be done. More...
virtual void	side_time_derivative (bool, AssemblyContext &)
	Time dependent part(s) of physics for boundaries of elements on the domain boundary. More...
virtual void	nonlocal_time_derivative (bool, AssemblyContext &)
	Time dependent part(s) of physics for scalar variables. More...
virtual void	element_constraint (bool, AssemblyContext &)
	Constraint part(s) of physics for element interiors. More...
virtual void	side_constraint (bool, AssemblyContext &)
	Constraint part(s) of physics for boundaries of elements on the domain boundary. More...
virtual void	nonlocal_constraint (bool, AssemblyContext &)
	Constraint part(s) of physics for scalar variables. More...
virtual void	damping_residual (bool, AssemblyContext &)
	Damping matrix part(s) for element interiors. All boundary terms lie within the time_derivative part. More...
virtual void	nonlocal_mass_residual (bool, AssemblyContext &)
	Mass matrix part(s) for scalar variables. More...
void	init_ics (libMesh::FEMSystem *system, libMesh::CompositeFunction< libMesh::Number > &all_ics)
virtual void	compute_element_time_derivative_cache (AssemblyContext &)
virtual void	compute_side_time_derivative_cache (AssemblyContext &)
virtual void	compute_nonlocal_time_derivative_cache (AssemblyContext &)
virtual void	compute_element_constraint_cache (AssemblyContext &)
virtual void	compute_side_constraint_cache (AssemblyContext &)
virtual void	compute_nonlocal_constraint_cache (AssemblyContext &)
virtual void	compute_damping_residual_cache (AssemblyContext &)
virtual void	compute_mass_residual_cache (AssemblyContext &)
virtual void	compute_nonlocal_mass_residual_cache (AssemblyContext &)
ICHandlingBase *	get_ic_handler ()
Public Member Functions inherited from GRINS::ParameterUser
	ParameterUser (const std::string &user_name)
virtual	~ParameterUser ()
virtual void	set_parameter (libMesh::Number &param_variable, const GetPot &input, const std::string &param_name, libMesh::Number param_default)
	Each subclass can simultaneously read a parameter value from. More...
virtual void	set_parameter (libMesh::ParsedFunction< libMesh::Number, libMesh::Gradient > &func, const GetPot &input, const std::string &func_param_name, const std::string &param_default)
	Each subclass can simultaneously read a parsed function from. More...
virtual void	set_parameter (libMesh::ParsedFEMFunction< libMesh::Number > &func, const GetPot &input, const std::string &func_param_name, const std::string &param_default)
	Each subclass can simultaneously read a parsed function from. More...
virtual void	move_parameter (const libMesh::Number &old_parameter, libMesh::Number &new_parameter)
	When cloning an object, we need to update parameter pointers. More...
virtual void	move_parameter (const libMesh::ParsedFunction< libMesh::Number, libMesh::Gradient > &old_func, libMesh::ParsedFunction< libMesh::Number, libMesh::Gradient > &new_func)
	When cloning an object, we need to update parameter pointers. More...
virtual void	move_parameter (const libMesh::ParsedFEMFunction< libMesh::Number > &old_func, libMesh::ParsedFEMFunction< libMesh::Number > &new_func)
	When cloning an object, we need to update parameter pointers. More...
virtual void	register_parameter (const std::string &param_name, libMesh::ParameterMultiAccessor< libMesh::Number > &param_pointer) const
	Each subclass will register its copy of an independent. More...

Private Member Functions
	ElasticCable ()

Private Attributes
std::vector< unsigned int >	_stress_indices
	Index from registering this quantity. Each component will have it's own index. More...
std::vector< unsigned int >	_strain_indices
	Index from registering this quantity. Each component will have it's own index. More...
std::vector< unsigned int >	_force_indices
	Index from registering this quantity. Each component will have it's own index. More...

Additional Inherited Members
Static Public Member Functions inherited from GRINS::Physics
static void	set_is_axisymmetric (bool is_axisymmetric)
	Set whether we should treat the problem as axisymmetric. More...
static bool	is_axisymmetric ()
Static Public Attributes inherited from GRINS::ParameterUser
static std::string	zero_vector_function = std::string("{0}")
	A parseable function string with LIBMESH_DIM components, all 0. More...
Protected Types inherited from GRINS::SolidMechanicsAbstract
typedef const libMesh::DenseSubVector< libMesh::Number > &(libMesh::DiffContext::*	VarFuncType) (unsigned int) const
typedef void(libMesh::FEMContext::*	InteriorFuncType) (unsigned int, unsigned int, libMesh::Real &) const
typedef libMesh::Real(libMesh::DiffContext::*	VarDerivType) () const
Protected Member Functions inherited from GRINS::ElasticCableBase< StressStrainLaw >
void	mass_residual_impl (bool compute_jacobian, AssemblyContext &context, InteriorFuncType interior_solution, VarDerivType get_solution_deriv, libMesh::Real mu=1.0)
	Implementation of mass_residual. More...
void	compute_metric_tensors (unsigned int qp, const libMesh::FEBase &elem, const AssemblyContext &context, const libMesh::Gradient &grad_u, const libMesh::Gradient &grad_v, const libMesh::Gradient &grad_w, libMesh::TensorValue< libMesh::Real > &a_cov, libMesh::TensorValue< libMesh::Real > &a_contra, libMesh::TensorValue< libMesh::Real > &A_cov, libMesh::TensorValue< libMesh::Real > &A_contra, libMesh::Real &lambda_sq)
Protected Member Functions inherited from GRINS::ElasticCableAbstract
const libMesh::FEGenericBase< libMesh::Real > *	get_fe (const AssemblyContext &context)
Protected Member Functions inherited from GRINS::Physics
libMesh::UniquePtr< libMesh::FEGenericBase< libMesh::Real > >	build_new_fe (const libMesh::Elem *elem, const libMesh::FEGenericBase< libMesh::Real > *fe, const libMesh::Point p)
void	parse_enabled_subdomains (const GetPot &input, const std::string &physics_name)
void	check_var_subdomain_consistency (const FEVariablesBase &var) const
	Check that var is enabled on at least the subdomains this Physics is. More...
Protected Attributes inherited from GRINS::ElasticCableBase< StressStrainLaw >
StressStrainLaw	_stress_strain_law
bool	_is_compressible
Protected Attributes inherited from GRINS::ElasticCableAbstract
libMesh::Real	_A
	Cross-sectional area of the cable. More...
libMesh::Real	_rho
	Cable density. More...
Protected Attributes inherited from GRINS::SolidMechanicsAbstract
DisplacementVariable &	_disp_vars
Protected Attributes inherited from GRINS::Physics
const PhysicsName	_physics_name
	Name of the physics object. Used for reading physics specific inputs. More...
GRINS::ICHandlingBase *	_ic_handler
std::set< libMesh::subdomain_id_type >	_enabled_subdomains
	Subdomains on which the current Physics class is enabled. More...
Static Protected Attributes inherited from GRINS::Physics
static bool	_is_steady = false
	Caches whether or not the solver that's being used is steady or not. More...
static bool	_is_axisymmetric = false
	Caches whether we are solving an axisymmetric problem or not. More...

Detailed Description

template<typename StressStrainLaw>
class GRINS::ElasticCable< StressStrainLaw >

Definition at line 35 of file elastic_cable.h.

Constructor & Destructor Documentation

template<typename StressStrainLaw >

GRINS::ElasticCable< StressStrainLaw >::ElasticCable	(	const PhysicsName &	physics_name,
		const GetPot &	input,
		bool	is_compressible
	)

Definition at line 44 of file elastic_cable.C.

References GRINS::Physics::_ic_handler.

    : ElasticCableBase<StressStrainLaw>(physics_name,input,is_compressible)
  {
    this->_ic_handler = new GenericICHandler(physics_name, input);
  }

template<typename StressStrainLaw >

virtual GRINS::ElasticCable< StressStrainLaw >::~ElasticCable ( )

inlinevirtual

Definition at line 42 of file elastic_cable.h.

{};

template<typename StressStrainLaw >

GRINS::ElasticCable< StressStrainLaw >::ElasticCable ( )

private

Member Function Documentation

template<typename StressStrainLaw >

void GRINS::ElasticCable< StressStrainLaw >::compute_postprocessed_quantity ( unsigned int  quantity_index, const AssemblyContext &  context, const libMesh::Point &  point, libMesh::Real &  value  )

virtual

Compute the registered postprocessed quantities.

Reimplemented from GRINS::Physics.

Definition at line 107 of file elastic_cable.C.

  {
    bool is_strain = false;
    if( !_strain_indices.empty() )
      is_strain = ( _strain_indices[0] == quantity_index );

    bool is_stress = false;
    if( !_stress_indices.empty() )
      is_stress = ( _stress_indices[0] == quantity_index );

    bool is_force = false;
    if( !_force_indices.empty() )
      is_force = ( _force_indices[0] == quantity_index );

    if( is_strain || is_stress || is_force )
      {
        const unsigned int n_u_dofs = context.get_dof_indices(this->_disp_vars.u()).size();

        const libMesh::DenseSubVector<libMesh::Number>& u_coeffs = context.get_elem_solution( this->_disp_vars.u() );
        const libMesh::DenseSubVector<libMesh::Number>* v_coeffs = NULL;

        const libMesh::DenseSubVector<libMesh::Number>* w_coeffs = NULL;

        if( this->_disp_vars.dim() >= 2 )
          v_coeffs = &context.get_elem_solution( this->_disp_vars.v() );

        if( this->_disp_vars.dim() == 3 )
          w_coeffs = &context.get_elem_solution( this->_disp_vars.w() );

        // Build new FE for the current point. We need this to build tensors at point.
        libMesh::UniquePtr<libMesh::FEGenericBase<libMesh::Real> > fe_new =  this->build_new_fe( &context.get_elem(), this->get_fe(context), point );

        const std::vector<std::vector<libMesh::Real> >& dphi_dxi =  fe_new->get_dphidxi();

        // Need these to build up the covariant and contravariant metric tensors
        const std::vector<libMesh::RealGradient>& dxdxi  = fe_new->get_dxyzdxi();

        // Gradients are w.r.t. master element coordinates
        libMesh::Gradient grad_u, grad_v, grad_w;
        for( unsigned int d = 0; d < n_u_dofs; d++ )
          {
            libMesh::RealGradient u_gradphi( dphi_dxi[d][0] );
            grad_u += u_coeffs(d)*u_gradphi;

            if( this->_disp_vars.dim() >= 2 )
              grad_v += (*v_coeffs)(d)*u_gradphi;

            if( this->_disp_vars.dim() == 3 )
              grad_w += (*w_coeffs)(d)*u_gradphi;
          }

        libMesh::RealGradient grad_x( dxdxi[0](0) );
        libMesh::RealGradient grad_y( dxdxi[0](1) );
        libMesh::RealGradient grad_z( dxdxi[0](2) );

        libMesh::TensorValue<libMesh::Real> a_cov, a_contra, A_cov, A_contra;
        libMesh::Real lambda_sq = 0;

        this->compute_metric_tensors(0, *fe_new, context,
                                     grad_u, grad_v, grad_w,
                                     a_cov, a_contra, A_cov, A_contra, lambda_sq );

        libMesh::Real det_a = a_cov(0,0)*a_cov(1,1) - a_cov(0,1)*a_cov(1,0);
        libMesh::Real det_A = A_cov(0,0)*A_cov(1,1) - A_cov(0,1)*A_cov(1,0);

        libMesh::Real I3 = lambda_sq*det_A/det_a;

        libMesh::TensorValue<libMesh::Real> tau;
        this->_stress_strain_law.compute_stress(1,a_contra,a_cov,A_contra,A_cov,tau);

        // We have everything we need for strain now, so check if we are computing strain
        if( is_strain )
          {
            if( _strain_indices[0] == quantity_index )
              {
                value = 0.5*(A_cov(0,0) - a_cov(0,0));
              }
            else
              {
                //Wat?!
                libmesh_error();
              }
            return;
          }

        if( is_stress )
          {
            if( _stress_indices[0] == quantity_index )
              {
                // Need to convert to Cauchy stress
                value = tau(0,0)/std::sqrt(I3);
              }
            else
              {
                libmesh_error();
              }
          }
        if( is_force )
          {

            if( _force_indices[0] == quantity_index )
              {
                //This force is in deformed configuration and will be significantly influenced by large strains
                value = tau(0,0)/std::sqrt(I3)*this->_A;
              }
            else
              {
                libmesh_error();
              }
          }
      }
  }

template<typename StressStrainLaw >

void GRINS::ElasticCable< StressStrainLaw >::element_time_derivative ( bool  compute_jacobian, AssemblyContext &  context  )

virtual

Time dependent part(s) of physics for element interiors.

Reimplemented from GRINS::Physics.

Definition at line 225 of file elastic_cable.C.

  {
    const unsigned int n_u_dofs = context.get_dof_indices(this->_disp_vars.u()).size();

    const std::vector<libMesh::Real> &JxW =
      this->get_fe(context)->get_JxW();

    // Residuals that we're populating
    libMesh::DenseSubVector<libMesh::Number> &Fu = context.get_elem_residual(this->_disp_vars.u());
    libMesh::DenseSubVector<libMesh::Number>* Fv = NULL;
    libMesh::DenseSubVector<libMesh::Number>* Fw = NULL;

    libMesh::DenseSubMatrix<libMesh::Number>& Kuu = context.get_elem_jacobian(this->_disp_vars.u(),this->_disp_vars.u());
    libMesh::DenseSubMatrix<libMesh::Number>* Kuv = NULL;
    libMesh::DenseSubMatrix<libMesh::Number>* Kuw = NULL;

    libMesh::DenseSubMatrix<libMesh::Number>* Kvu = NULL;
    libMesh::DenseSubMatrix<libMesh::Number>* Kvv = NULL;
    libMesh::DenseSubMatrix<libMesh::Number>* Kvw = NULL;

    libMesh::DenseSubMatrix<libMesh::Number>* Kwu = NULL;
    libMesh::DenseSubMatrix<libMesh::Number>* Kwv = NULL;
    libMesh::DenseSubMatrix<libMesh::Number>* Kww = NULL;

    if( this->_disp_vars.dim() >= 2 )
      {
        Fv = &context.get_elem_residual(this->_disp_vars.v());

        Kuv = &context.get_elem_jacobian(this->_disp_vars.u(),this->_disp_vars.v());
        Kvu = &context.get_elem_jacobian(this->_disp_vars.v(),this->_disp_vars.u());
        Kvv = &context.get_elem_jacobian(this->_disp_vars.v(),this->_disp_vars.v());
      }

    if( this->_disp_vars.dim() == 3 )
      {
        Fw = &context.get_elem_residual(this->_disp_vars.w());

        Kuw = &context.get_elem_jacobian(this->_disp_vars.u(),this->_disp_vars.w());
        Kvw = &context.get_elem_jacobian(this->_disp_vars.v(),this->_disp_vars.w());
        Kwu = &context.get_elem_jacobian(this->_disp_vars.w(),this->_disp_vars.u());
        Kwv = &context.get_elem_jacobian(this->_disp_vars.w(),this->_disp_vars.v());
        Kww = &context.get_elem_jacobian(this->_disp_vars.w(),this->_disp_vars.w());
      }


    unsigned int n_qpoints = context.get_element_qrule().n_points();

    // All shape function gradients are w.r.t. master element coordinates
    const std::vector<std::vector<libMesh::Real> >& dphi_dxi = this->get_fe(context)->get_dphidxi();

    const libMesh::DenseSubVector<libMesh::Number>& u_coeffs = context.get_elem_solution( this->_disp_vars.u() );
    const libMesh::DenseSubVector<libMesh::Number>* v_coeffs = NULL;
    const libMesh::DenseSubVector<libMesh::Number>* w_coeffs = NULL;

    if( this->_disp_vars.dim() >= 2 )
      v_coeffs = &context.get_elem_solution( this->_disp_vars.v() );

    if( this->_disp_vars.dim() == 3 )
      w_coeffs = &context.get_elem_solution( this->_disp_vars.w() );

    // Need these to build up the covariant and contravariant metric tensors
    const std::vector<libMesh::RealGradient>& dxdxi  = this->get_fe(context)->get_dxyzdxi();

    const unsigned int dim = 1; // The cable dimension is always 1 for this physics

    for (unsigned int qp=0; qp != n_qpoints; qp++)
      {
        // Gradients are w.r.t. master element coordinates
        libMesh::Gradient grad_u, grad_v, grad_w;

        for( unsigned int d = 0; d < n_u_dofs; d++ )
          {
            libMesh::RealGradient u_gradphi( dphi_dxi[d][qp] );
            grad_u += u_coeffs(d)*u_gradphi;

            if( this->_disp_vars.dim() >= 2 )
              grad_v += (*v_coeffs)(d)*u_gradphi;

            if( this->_disp_vars.dim() == 3 )
              grad_w += (*w_coeffs)(d)*u_gradphi;
          }

        libMesh::RealGradient grad_x( dxdxi[qp](0) );
        libMesh::RealGradient grad_y( dxdxi[qp](1) );
        libMesh::RealGradient grad_z( dxdxi[qp](2) );

        libMesh::TensorValue<libMesh::Real> a_cov, a_contra, A_cov, A_contra;
        libMesh::Real lambda_sq = 0;

        this->compute_metric_tensors( qp, *(this->get_fe(context)), context,
                                      grad_u, grad_v, grad_w,
                                      a_cov, a_contra, A_cov, A_contra,
                                      lambda_sq );

        // Compute stress tensor
        libMesh::TensorValue<libMesh::Real> tau;
        ElasticityTensor C;
        this->_stress_strain_law.compute_stress_and_elasticity(dim,a_contra,a_cov,A_contra,A_cov,tau,C);


        libMesh::Real jac = JxW[qp];

        for (unsigned int i=0; i != n_u_dofs; i++)
          {
            libMesh::RealGradient u_gradphi( dphi_dxi[i][qp] );

            const libMesh::Real res_term = tau(0,0)*this->_A*jac*u_gradphi(0);

            Fu(i) += res_term*(grad_x(0) + grad_u(0));

            if( this->_disp_vars.dim() >= 2 )
              (*Fv)(i) += res_term*(grad_y(0) + grad_v(0));

            if( this->_disp_vars.dim() == 3 )
              (*Fw)(i) += res_term*(grad_z(0) + grad_w(0));
          }

        if( compute_jacobian )
          {
            for(unsigned int i=0; i != n_u_dofs; i++)
              {
                libMesh::RealGradient u_gradphi_I( dphi_dxi[i][qp] );
                for(unsigned int j=0; j != n_u_dofs; j++)
                  {
                    libMesh::RealGradient u_gradphi_J( dphi_dxi[j][qp] );

                    const libMesh::Real diag_term = this->_A*jac*tau(0,0)*( u_gradphi_J(0)*u_gradphi_I(0))*context.get_elem_solution_derivative();

                    Kuu(i,j) += diag_term;

                    if( this->_disp_vars.dim() >= 2 )
                      (*Kvv)(i,j) += diag_term;

                    if( this->_disp_vars.dim() == 3 )
                      (*Kww)(i,j) += diag_term;

                    const libMesh::Real dgamma_du = ( u_gradphi_J(0)*(grad_x(0)+grad_u(0)) );

                    const libMesh::Real C1 = this->_A*jac*C(0,0,0,0)*context.get_elem_solution_derivative();

                    const libMesh::Real x_term = C1*( (grad_x(0)+grad_u(0))*u_gradphi_I(0) );

                    Kuu(i,j) += x_term*dgamma_du;

                    libMesh::Real y_term = 0.0;
                    libMesh::Real dgamma_dv = 0.0;

                    if( this->_disp_vars.dim() >= 2 )
                      {
                        dgamma_dv = ( u_gradphi_J(0)*(grad_y(0)+grad_v(0)) );
                        y_term = C1*( (grad_y(0)+grad_v(0))*u_gradphi_I(0) );

                        (*Kuv)(i,j) += x_term*dgamma_dv;
                        (*Kvu)(i,j) += y_term*dgamma_du;
                        (*Kvv)(i,j) += y_term*dgamma_dv;
                      }

                    libMesh::Real z_term = 0.0;

                    if( this->_disp_vars.dim() == 3 )
                      {
                        const libMesh::Real dgamma_dw = ( u_gradphi_J(0)*(grad_z(0)+grad_w(0)) );
                        z_term = C1*( (grad_z(0)+grad_w(0))*u_gradphi_I(0) );

                        (*Kuw)(i,j) += x_term*dgamma_dw;
                        (*Kvw)(i,j) += y_term*dgamma_dw;
                        (*Kwu)(i,j) += z_term*dgamma_du;
                        (*Kwv)(i,j) += z_term*dgamma_dv;
                        (*Kww)(i,j) += z_term*dgamma_dw;
                      }

                  } // end j-loop
              } // end i-loop
          } // end if(compute_jacobian)
      } // end qp loop
  }

template<typename StressStrainLaw >

virtual void GRINS::ElasticCable< StressStrainLaw >::mass_residual ( bool  , AssemblyContext &    )

inlinevirtual

Mass matrix part(s) for element interiors. All boundary terms lie within the time_derivative part.

Reimplemented from GRINS::Physics.

Definition at line 52 of file elastic_cable.h.

References GRINS::ElasticCableBase< StressStrainLaw >::mass_residual_impl().

    { this->mass_residual_impl(compute_jacobian,
                               context,
                               &libMesh::FEMContext::interior_accel,
                               &libMesh::DiffContext::get_elem_solution_accel_derivative); }

template<typename StressStrainLaw >

void GRINS::ElasticCable< StressStrainLaw >::register_postprocessing_vars ( const GetPot &  input, PostProcessedQuantities< libMesh::Real > &  postprocessing  )

virtual

Register postprocessing variables for ElasticCable.

Reimplemented from GRINS::Physics.

Definition at line 52 of file elastic_cable.C.

References GRINS::PhysicsNaming::elastic_cable(), and GRINS::PostProcessedQuantities< NumericType >::register_quantity().

  {
    std::string section = "Physics/"+PhysicsNaming::elastic_cable()+"/output_vars";

    if( input.have_variable(section) )
      {
        unsigned int n_vars = input.vector_variable_size(section);

        for( unsigned int v = 0; v < n_vars; v++ )
          {
            std::string name = input(section,"DIE!",v);

            if( name == std::string("stress") )
              {
                // sigma_xx only, i.e., locally normal to the cutting plane
                // sigma_yy=sigma_zz = 0 by assumption of this Physics
                _stress_indices.resize(1);

                this->_stress_indices[0] = postprocessing.register_quantity("cable_stress");

              }
            else if( name == std::string("strain") )
              {
                // eps_xx only, i.e., locally normal to the cutting plane
                // eps_yy=eps_zz = 0 by assumption of this Physics
                _strain_indices.resize(1);

                this->_strain_indices[0] = postprocessing.register_quantity("cable_strain");

              }
            else if( name == std::string("force") )
              {
                // force_x only, i.e., locally normal to the cutting plane
                // force_y=force_z=0 by assumption of this Physics
                _force_indices.resize(1);

                this->_force_indices[0] = postprocessing.register_quantity("cable_force");

              }
            else
              {
                std::cerr << "Error: Invalue output_vars value for "+PhysicsNaming::elastic_cable() << std::endl
                          << "       Found " << name << std::endl
                          << "       Acceptable values are: stress" << std::endl
                          << "                              strain" << std::endl
                          << "                              force " << std::endl;
                libmesh_error();
              }
          }
      }
    return;
  }

Member Data Documentation

template<typename StressStrainLaw >

std::vector<unsigned int> GRINS::ElasticCable< StressStrainLaw >::_force_indices

private

Index from registering this quantity. Each component will have it's own index.

Definition at line 76 of file elastic_cable.h.

template<typename StressStrainLaw >

std::vector<unsigned int> GRINS::ElasticCable< StressStrainLaw >::_strain_indices

private

Index from registering this quantity. Each component will have it's own index.

Definition at line 73 of file elastic_cable.h.

template<typename StressStrainLaw >

std::vector<unsigned int> GRINS::ElasticCable< StressStrainLaw >::_stress_indices

private

Index from registering this quantity. Each component will have it's own index.

Definition at line 70 of file elastic_cable.h.

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

• src/physics/include/grins/elastic_cable.h
• src/physics/src/elastic_cable.C