MFEM  v3.2
Finite element discretization library
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mfem::ElasticityIntegrator Class Reference

#include <bilininteg.hpp>

Inheritance diagram for mfem::ElasticityIntegrator:
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Collaboration diagram for mfem::ElasticityIntegrator:
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Public Member Functions

 ElasticityIntegrator (Coefficient &l, Coefficient &m)
 
 ElasticityIntegrator (Coefficient &m, double q_l, double q_m)
 
virtual void AssembleElementMatrix (const FiniteElement &, ElementTransformation &, DenseMatrix &)
 Given a particular Finite Element computes the element matrix elmat. More...
 
- Public Member Functions inherited from mfem::BilinearFormIntegrator
virtual void AssembleElementMatrix2 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans, DenseMatrix &elmat)
 
virtual void AssembleFaceMatrix (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Trans, DenseMatrix &elmat)
 
virtual void AssembleFaceMatrix (const FiniteElement &trial_face_fe, const FiniteElement &test_fe1, const FiniteElement &test_fe2, FaceElementTransformations &Trans, DenseMatrix &elmat)
 
virtual void AssembleElementVector (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, Vector &elvect)
 Perform the local action of the BilinearFormIntegrator. More...
 
virtual void AssembleElementGrad (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, DenseMatrix &elmat)
 Assemble the local gradient matrix. More...
 
virtual void ComputeElementFlux (const FiniteElement &el, ElementTransformation &Trans, Vector &u, const FiniteElement &fluxelem, Vector &flux, int with_coef=1)
 
virtual double ComputeFluxEnergy (const FiniteElement &fluxelem, ElementTransformation &Trans, Vector &flux, Vector *d_energy=NULL)
 
void SetIntRule (const IntegrationRule *ir)
 
virtual ~BilinearFormIntegrator ()
 
- Public Member Functions inherited from mfem::NonlinearFormIntegrator
virtual double GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
 Compute the local energy. More...
 
virtual ~NonlinearFormIntegrator ()
 

Additional Inherited Members

- Protected Member Functions inherited from mfem::BilinearFormIntegrator
 BilinearFormIntegrator (const IntegrationRule *ir=NULL)
 
- Protected Attributes inherited from mfem::BilinearFormIntegrator
const IntegrationRuleIntRule
 

Detailed Description

Integrator for the linear elasticity form: a(u,v) = (lambda div(u), div(v)) + (2 mu e(u), e(v)), where e(v) = (1/2) (grad(v) + grad(v)^T). This is a 'Vector' integrator, i.e. defined for FE spaces using multiple copies of a scalar FE space.

Definition at line 570 of file bilininteg.hpp.

Constructor & Destructor Documentation

mfem::ElasticityIntegrator::ElasticityIntegrator ( Coefficient l,
Coefficient m 
)
inline

Definition at line 582 of file bilininteg.hpp.

mfem::ElasticityIntegrator::ElasticityIntegrator ( Coefficient m,
double  q_l,
double  q_m 
)
inline

With this constructor lambda = q_l * m and mu = q_m * m; if dim * q_l + 2 * q_m = 0 then trace(sigma) = 0.

Definition at line 586 of file bilininteg.hpp.

Member Function Documentation

void mfem::ElasticityIntegrator::AssembleElementMatrix ( const FiniteElement el,
ElementTransformation Trans,
DenseMatrix elmat 
)
virtual

Given a particular Finite Element computes the element matrix elmat.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 1735 of file bilininteg.cpp.


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