GRINS::Hyperelasticity< StrainEnergy > Class Template Reference

#include <hyperelasticity.h>

Inheritance diagram for GRINS::Hyperelasticity< StrainEnergy >:

Collaboration diagram for GRINS::Hyperelasticity< StrainEnergy >:

Public Member Functions
	Hyperelasticity (const GetPot &input)
virtual	~Hyperelasticity ()
Public Member Functions inherited from GRINS::StressStrainLaw< Hyperelasticity< StrainEnergy > >
	StressStrainLaw ()
virtual	~StressStrainLaw ()
void	compute_stress (unsigned int dim, const libMesh::TensorValue< libMesh::Real > &g_contra, const libMesh::TensorValue< libMesh::Real > &g_cov, const libMesh::TensorValue< libMesh::Real > &G_contra, const libMesh::TensorValue< libMesh::Real > &G_cov, libMesh::TensorValue< libMesh::Real > &stress)
void	compute_stress_and_elasticity (unsigned int dim, const libMesh::TensorValue< libMesh::Real > &g_contra, const libMesh::TensorValue< libMesh::Real > &g_cov, const libMesh::TensorValue< libMesh::Real > &G_contra, const libMesh::TensorValue< libMesh::Real > &G_cov, libMesh::TensorValue< libMesh::Real > &stress, ElasticityTensor &C)
libMesh::Real	compute_33_stress (const libMesh::TensorValue< libMesh::Real > &g_contra, const libMesh::TensorValue< libMesh::Real > &g_cov, const libMesh::TensorValue< libMesh::Real > &G_contra, const libMesh::TensorValue< libMesh::Real > &G_cov)
	This is primarily a helper function for the plane stress cases. More...

Private Member Functions
void	compute_stress_imp (unsigned int dim, const libMesh::TensorValue< libMesh::Real > &g_contra, const libMesh::TensorValue< libMesh::Real > &g_cov, const libMesh::TensorValue< libMesh::Real > &G_contra, const libMesh::TensorValue< libMesh::Real > &G_cov, libMesh::TensorValue< libMesh::Real > &stress)
void	compute_stress_and_elasticity_imp (unsigned int dim, const libMesh::TensorValue< libMesh::Real > &g_contra, const libMesh::TensorValue< libMesh::Real > &g_cov, const libMesh::TensorValue< libMesh::Real > &G_contra, const libMesh::TensorValue< libMesh::Real > &G_cov, libMesh::TensorValue< libMesh::Real > &stress, ElasticityTensor &C)
libMesh::Real	compute_33_stress_imp (const libMesh::TensorValue< libMesh::Real > &g_contra, const libMesh::TensorValue< libMesh::Real > &g_cov, const libMesh::TensorValue< libMesh::Real > &G_contra, const libMesh::TensorValue< libMesh::Real > &G_cov)

Private Attributes
StrainEnergy	_W

Friends
class	StressStrainLaw< Hyperelasticity< StrainEnergy > >

Detailed Description

template<typename StrainEnergy>
class GRINS::Hyperelasticity< StrainEnergy >

Definition at line 45 of file hyperelasticity.h.

Constructor & Destructor Documentation

template<typename StrainEnergy >

GRINS::Hyperelasticity< StrainEnergy >::Hyperelasticity

(

const GetPot &

input

)

Definition at line 35 of file hyperelasticity.C.

    : _W(input)
  {
    return;
  }

template<typename StrainEnergy >

GRINS::Hyperelasticity< StrainEnergy >::~Hyperelasticity ( )

virtual

Definition at line 42 of file hyperelasticity.C.

  {
    return;
  }

Member Function Documentation

template<typename StrainEnergy >

libMesh::Real GRINS::Hyperelasticity< StrainEnergy >::compute_33_stress_imp ( const libMesh::TensorValue< libMesh::Real > &  g_contra, const libMesh::TensorValue< libMesh::Real > &  g_cov, const libMesh::TensorValue< libMesh::Real > &  G_contra, const libMesh::TensorValue< libMesh::Real > &  G_cov  )

private

Definition at line 111 of file hyperelasticity.C.

  {
    libmesh_not_implemented();
    return 0.0;
  }

template<typename StrainEnergy >

void GRINS::Hyperelasticity< StrainEnergy >::compute_stress_and_elasticity_imp ( unsigned int  dim, const libMesh::TensorValue< libMesh::Real > &  g_contra, const libMesh::TensorValue< libMesh::Real > &  g_cov, const libMesh::TensorValue< libMesh::Real > &  G_contra, const libMesh::TensorValue< libMesh::Real > &  G_cov, libMesh::TensorValue< libMesh::Real > &  stress, ElasticityTensor &  C  )

private

Definition at line 98 of file hyperelasticity.C.

  {
    libmesh_not_implemented();
    return;
  }

template<typename StrainEnergy >

void GRINS::Hyperelasticity< StrainEnergy >::compute_stress_imp ( unsigned int  dim, const libMesh::TensorValue< libMesh::Real > &  g_contra, const libMesh::TensorValue< libMesh::Real > &  g_cov, const libMesh::TensorValue< libMesh::Real > &  G_contra, const libMesh::TensorValue< libMesh::Real > &  G_cov, libMesh::TensorValue< libMesh::Real > &  stress  )

private

Definition at line 48 of file hyperelasticity.C.

  {
    stress.zero();

    // Compute strain invariants
    libMesh::Real I3 = (g_contra*G_cov).det();

    libMesh::Real I1 = 0.0;
    libMesh::Real I2 = 0.0;
    for( unsigned int i = 0; i < dim; i++ )
      {
        for( unsigned int j = 0; j < dim; j++ )
          {
            I1 += g_contra(i,j)*G_cov(i,j);
            I2 += G_contra(i,j)*g_cov(i,j);
          }
      }

    I2 *= I3;

    libMesh::Real dWdI1 = _W.dI1(I1,I2,I3);
    libMesh::Real dWdI2 = _W.dI2(I1,I2,I3);
    libMesh::Real dWdI3 = _W.dI3(I1,I2,I3);

    // Now compute stress
    for( unsigned int i = 0; i < dim; i++ )
      {
        for( unsigned int j = 0; j < dim; j++ )
          {
            for( unsigned int k = 0; k < dim; k++ )
              {
                for( unsigned int l = 0; l < dim; l++ )
                  {
                    stress(i,j) += 2.0*dWdI1*g_contra(i,j)
                      + 2.0*dWdI2*(I1*g_contra(i,j) - g_contra(i,k)*g_contra(j,l)*G_cov(k,l))
                      + 2.0*dWdI3*G_contra(i,j);
                  }
              }
          }
      }

    return;
  }

Friends And Related Function Documentation

template<typename StrainEnergy >

friend class StressStrainLaw< Hyperelasticity< StrainEnergy > >

friend

Definition at line 52 of file hyperelasticity.h.

Member Data Documentation

template<typename StrainEnergy >

StrainEnergy GRINS::Hyperelasticity< StrainEnergy >::_W

private

Definition at line 76 of file hyperelasticity.h.

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

• src/properties/include/grins/hyperelasticity.h
• src/properties/src/hyperelasticity.C