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CompressibleNonlinearElasticitySolver< DIM > Class Template Reference

#include <CompressibleNonlinearElasticitySolver.hpp>

+ Inheritance diagram for CompressibleNonlinearElasticitySolver< DIM >:
+ Collaboration diagram for CompressibleNonlinearElasticitySolver< DIM >:

Public Member Functions

 CompressibleNonlinearElasticitySolver (AbstractTetrahedralMesh< DIM, DIM > &rQuadMesh, SolidMechanicsProblemDefinition< DIM > &rProblemDefinition, std::string outputDirectory)
 
virtual ~CompressibleNonlinearElasticitySolver ()
 
- Public Member Functions inherited from AbstractNonlinearElasticitySolver< DIM >
void ComputeResidual (Vec currentGuess, Vec residualVector)
 
void ComputeJacobian (Vec currentGuess, Mat *pJacobian, Mat *pPreconditioner)
 
 AbstractNonlinearElasticitySolver (AbstractTetrahedralMesh< DIM, DIM > &rQuadMesh, SolidMechanicsProblemDefinition< DIM > &rProblemDefinition, std::string outputDirectory, CompressibilityType compressibilityType)
 
virtual ~AbstractNonlinearElasticitySolver ()
 
void Solve (double tol=-1.0)
 
void SetIncludeActiveTension (bool includeActiveTension=true)
 
unsigned GetNumNewtonIterations ()
 
void SetWriteOutputEachNewtonIteration (bool writeOutputEachNewtonIteration=true)
 
void SetKspAbsoluteTolerance (double kspAbsoluteTolerance)
 
void SetTakeFullFirstNewtonStep (bool takeFullFirstStep=true)
 
void SetUsePetscDirectSolve (bool usePetscDirectSolve=true)
 
void SetCurrentTime (double time)
 
void CreateCmguiOutput ()
 
void WriteCurrentStrains (StrainType strainType, std::string fileName, int counterToAppend=-1)
 
void SetComputeAverageStressPerElementDuringSolve (bool setComputeAverageStressPerElement=true)
 
void WriteCurrentAverageElementStresses (std::string fileName, int counterToAppend=-1)
 
std::vector< c_vector< double,
DIM > > & 		rGetSpatialSolution ()
 
std::vector< c_vector< double,
DIM > > & 		rGetDeformedPosition ()
 
c_matrix< double, DIM, DIM > GetAverageStressPerElement (unsigned elementIndex)
 
- Public Member Functions inherited from AbstractContinuumMechanicsSolver< DIM >
 AbstractContinuumMechanicsSolver (AbstractTetrahedralMesh< DIM, DIM > &rQuadMesh, ContinuumMechanicsProblemDefinition< DIM > &rProblemDefinition, std::string outputDirectory, CompressibilityType compressibilityType)
 
virtual ~AbstractContinuumMechanicsSolver ()
 
void WriteCurrentSpatialSolution (std::string fileName, std::string fileExtension, int counterToAppend=-1)
 
void WriteCurrentPressureSolution (int counterToAppend=-1)
 
void SetWriteOutput (bool writeOutput=true)
 
void CreateVtkOutput (std::string spatialSolutionName="Spatial solution")
 
std::vector< double > & rGetCurrentSolution ()
 
std::vector< double > & rGetPressures ()
 

Protected Member Functions

virtual void AssembleOnElement (Element< DIM, DIM > &rElement, c_matrix< double, STENCIL_SIZE, STENCIL_SIZE > &rAElem, c_matrix< double, STENCIL_SIZE, STENCIL_SIZE > &rAElemPrecond, c_vector< double, STENCIL_SIZE > &rBElem, bool assembleResidual, bool assembleJacobian)
 
void AssembleSystem (bool assembleResidual, bool assembleJacobian)
 
- Protected Member Functions inherited from AbstractNonlinearElasticitySolver< DIM >
void AddStressToAverageStressPerElement (c_matrix< double, DIM, DIM > &rT, unsigned elementIndex)
 
virtual void SetKspSolverAndPcType (KSP solver)
 
virtual void FinishAssembleSystem (bool assembleResidual, bool assembleLinearSystem)
 
void GetElementCentroidStrain (StrainType strainType, Element< DIM, DIM > &rElement, c_matrix< double, DIM, DIM > &rDeformationGradient)
 
virtual void AddActiveStressAndStressDerivative (c_matrix< double, DIM, DIM > &rC, unsigned elementIndex, unsigned currentQuadPointGlobalIndex, c_matrix< double, DIM, DIM > &rT, FourthOrderTensor< DIM, DIM, DIM, DIM > &rDTdE, bool addToDTdE)
 
virtual void SetupChangeOfBasisMatrix (unsigned elementIndex, unsigned currentQuadPointGlobalIndex)
 
void AssembleOnBoundaryElement (BoundaryElement< DIM-1, DIM > &rBoundaryElement, c_matrix< double, BOUNDARY_STENCIL_SIZE, BOUNDARY_STENCIL_SIZE > &rAelem, c_vector< double, BOUNDARY_STENCIL_SIZE > &rBelem, bool assembleResidual, bool assembleJacobian, unsigned boundaryConditionIndex)
 
bool ShouldAssembleMatrixTermForPressureOnDeformedBc ()
 
void AssembleOnBoundaryElementForPressureOnDeformedBc (BoundaryElement< DIM-1, DIM > &rBoundaryElement, c_matrix< double, BOUNDARY_STENCIL_SIZE, BOUNDARY_STENCIL_SIZE > &rAelem, c_vector< double, BOUNDARY_STENCIL_SIZE > &rBelem, bool assembleResidual, bool assembleJacobian, unsigned boundaryConditionIndex)
 
double ComputeResidualAndGetNorm (bool allowException)
 
double CalculateResidualNorm ()
 
void VectorSum (std::vector< double > &rX, ReplicatableVector &rY, double a, std::vector< double > &rZ)
 
void PrintLineSearchResult (double s, double residNorm)
 
double TakeNewtonStep ()
 
double UpdateSolutionUsingLineSearch (Vec solution)
 
virtual void PostNewtonStep (unsigned counter, double normResidual)
 
void SolveNonSnes (double tol=-1.0)
 
- Protected Member Functions inherited from AbstractContinuumMechanicsSolver< DIM >
void AllocateMatrixMemory ()
 
void ApplyDirichletBoundaryConditions (ApplyDirichletBcsType type, bool symmetricProblem)
 
void AddIdentityBlockForDummyPressureVariables (ApplyDirichletBcsType type)
 
void RemovePressureDummyValuesThroughLinearInterpolation ()
 

Static Protected Attributes

static const size_t NUM_NODES_PER_ELEMENT = AbstractNonlinearElasticitySolver<DIM>::NUM_NODES_PER_ELEMENT
 
static const size_t NUM_VERTICES_PER_ELEMENT = AbstractNonlinearElasticitySolver<DIM>::NUM_VERTICES_PER_ELEMENT
 
static const size_t NUM_NODES_PER_BOUNDARY_ELEMENT = AbstractNonlinearElasticitySolver<DIM>::NUM_NODES_PER_BOUNDARY_ELEMENT
 
static const size_t STENCIL_SIZE = DIM*NUM_NODES_PER_ELEMENT
 
static const size_t BOUNDARY_STENCIL_SIZE = DIM*NUM_NODES_PER_BOUNDARY_ELEMENT
 
- Static Protected Attributes inherited from AbstractNonlinearElasticitySolver< DIM >
static const size_t NUM_VERTICES_PER_ELEMENT = DIM+1
 
static const size_t NUM_NODES_PER_ELEMENT = (DIM+1)*(DIM+2)/2
 
static const size_t NUM_NODES_PER_BOUNDARY_ELEMENT = DIM*(DIM+1)/2
 
static const size_t BOUNDARY_STENCIL_SIZE = DIM*NUM_NODES_PER_BOUNDARY_ELEMENT
 
static double MAX_NEWTON_ABS_TOL = 1e-7
 
static double MIN_NEWTON_ABS_TOL = 1e-10
 
static double NEWTON_REL_TOL = 1e-4
 

Friends

class TestCompressibleNonlinearElasticitySolver
 
class TestStressRecoveror
 

Additional Inherited Members

- Protected Attributes inherited from AbstractNonlinearElasticitySolver< DIM >
SolidMechanicsProblemDefinition
< DIM > & 		mrProblemDefinition
 
Mat & mrJacobianMatrix
 
c_matrix< double, DIM, DIM > mChangeOfBasisMatrix
 
double mKspAbsoluteTol
 
bool mWriteOutputEachNewtonIteration
 
FourthOrderTensor< DIM, DIM,
DIM, DIM > 		dTdE
 
unsigned mNumNewtonIterations
 
double mCurrentTime
 
bool mCheckedOutwardNormals
 
bool mUseSnesSolver
 
double mLastDampingValue
 
bool mFirstStep
 
bool mTakeFullFirstNewtonStep
 
bool mPetscDirectSolve
 
bool mIncludeActiveTension
 
bool mSetComputeAverageStressPerElement
 
std::vector< c_vector< double,
DIM *(DIM+1)/2 > > 		mAverageStressesPerElement
 
- Protected Attributes inherited from AbstractContinuumMechanicsSolver< DIM >
AbstractTetrahedralMesh< DIM,
DIM > & 		mrQuadMesh
 
ContinuumMechanicsProblemDefinition
< DIM > & 		mrProblemDefinition
 
bool mWriteOutput
 
std::string mOutputDirectory
 
OutputFileHandler * mpOutputFileHandler
 
std::vector< c_vector< double,
DIM > > 		mSpatialSolution
 
std::vector< double > mPressureSolution
 
std::vector< double > mCurrentSolution
 
GaussianQuadratureRule< DIM > * mpQuadratureRule
 
GaussianQuadratureRule< DIM-1 > * mpBoundaryQuadratureRule
 
CompressibilityType mCompressibilityType
 
unsigned mProblemDimension
 
unsigned mNumDofs
 
bool mVerbose
 
Vec mResidualVector
 
Vec mLinearSystemRhsVector
 
Mat mSystemLhsMatrix
 
Vec mDirichletBoundaryConditionsVector
 
Mat mPreconditionMatrix
 

Detailed Description

template<size_t DIM>
class CompressibleNonlinearElasticitySolver< DIM >

Finite elasticity solver. Solves static *compressible* nonlinear elasticity problems with arbitrary (compressible) material laws and a body force.

Uses quadratic basis functions for displacement, and is therefore outside the other assembler or solver hierarchy.

Definition at line 64 of file CompressibleNonlinearElasticitySolver.hpp.

Constructor & Destructor Documentation

template<size_t DIM>
CompressibleNonlinearElasticitySolver< DIM >::CompressibleNonlinearElasticitySolver ( AbstractTetrahedralMesh< DIM, DIM > &  rQuadMesh,
SolidMechanicsProblemDefinition< DIM > &  rProblemDefinition,
std::string  outputDirectory 
)

Constructor

Parameters
rQuadMeshThe quadratic mesh to solve on
rProblemDefinitionan object defining in particular the body force and boundary conditions
outputDirectoryThe output directory

Definition at line 460 of file CompressibleNonlinearElasticitySolver.cpp.

References EXCEPTION, and SolidMechanicsProblemDefinition< DIM >::GetCompressibilityType().

template<size_t DIM>
CompressibleNonlinearElasticitySolver< DIM >::~CompressibleNonlinearElasticitySolver ( )
virtual

Destructor.

Definition at line 476 of file CompressibleNonlinearElasticitySolver.cpp.

Member Function Documentation

template<size_t DIM>
void CompressibleNonlinearElasticitySolver< DIM >::AssembleOnElement ( Element< DIM, DIM > &  rElement,
c_matrix< double, STENCIL_SIZE, STENCIL_SIZE > &  rAElem,
c_matrix< double, STENCIL_SIZE, STENCIL_SIZE > &  rAElemPrecond,
c_vector< double, STENCIL_SIZE > &  rBElem,
bool  assembleResidual,
bool  assembleJacobian 
)
protectedvirtual

Assemble residual or Jacobian on an element, using the current solution stored in mCurrrentSolution. The ordering assumed is (in 2d) rBElem = [u0 v0 u1 v1 .. u5 v5].

Parameters
rElementThe element to assemble on.
rAElemThe element's contribution to the LHS matrix is returned in this n by n matrix, where n is the no. of nodes in this element. There is no need to zero this matrix before calling.
rAElemPrecondThe element's contribution to the matrix passed to PetSC in creating a preconditioner
rBElemThe element's contribution to the RHS vector is returned in this vector of length n, the no. of nodes in this element. There is no need to zero this vector before calling.
assembleResidualA bool stating whether to assemble the residual vector.
assembleJacobianA bool stating whether to assemble the Jacobian matrix.

Definition at line 175 of file CompressibleNonlinearElasticitySolver.cpp.

References QuadraticBasisFunction< ELEMENT_DIM >::ComputeBasisFunctions(), LinearBasisFunction< ELEMENT_DIM >::ComputeBasisFunctions(), AbstractMaterialLaw< DIM >::ComputeStressAndStressDerivative(), QuadraticBasisFunction< ELEMENT_DIM >::ComputeTransformedBasisFunctionDerivatives(), AbstractElement< ELEMENT_DIM, SPACE_DIM >::GetIndex(), AbstractElement< ELEMENT_DIM, SPACE_DIM >::GetNodeGlobalIndex(), Inverse(), NEVER_REACHED, and AbstractMaterialLaw< DIM >::SetChangeOfBasisMatrix().

template<size_t DIM>
void CompressibleNonlinearElasticitySolver< DIM >::AssembleSystem ( bool  assembleResidual,
bool  assembleJacobian 
)
protectedvirtual

Assemble the residual vector (using the current solution stored in mCurrentSolution, output going to mpLinearSystem->rGetRhsVector), or Jacobian matrix (using the current solution stored in mCurrentSolution, output going to mpLinearSystem->rGetLhsMatrix).

Parameters
assembleResidualA bool stating whether to assemble the residual vector.
assembleJacobianA bool stating whether to assemble the Jacobian matrix.

Implements AbstractNonlinearElasticitySolver< DIM >.

Definition at line 54 of file CompressibleNonlinearElasticitySolver.cpp.

References PetscVecTools::Finalise(), AbstractTetrahedralMesh< ELEMENT_DIM, SPACE_DIM >::GetElementIteratorBegin(), PetscTools::GetMyRank(), AbstractElement< ELEMENT_DIM, SPACE_DIM >::GetNodeGlobalIndex(), AbstractElement< ELEMENT_DIM, SPACE_DIM >::GetOwnership(), CommandLineArguments::Instance(), CommandLineArguments::OptionExists(), PetscVecTools::Zero(), and PetscMatTools::Zero().

Member Data Documentation

template<size_t DIM>
const size_t CompressibleNonlinearElasticitySolver< DIM >::BOUNDARY_STENCIL_SIZE = DIM*NUM_NODES_PER_BOUNDARY_ELEMENT
staticprotected

Boundary stencil size.

Definition at line 87 of file CompressibleNonlinearElasticitySolver.hpp.

template<size_t DIM>
const size_t CompressibleNonlinearElasticitySolver< DIM >::NUM_NODES_PER_BOUNDARY_ELEMENT = AbstractNonlinearElasticitySolver<DIM>::NUM_NODES_PER_BOUNDARY_ELEMENT
staticprotected

Number of nodes per boundary element.

Definition at line 78 of file CompressibleNonlinearElasticitySolver.hpp.

template<size_t DIM>
const size_t CompressibleNonlinearElasticitySolver< DIM >::NUM_NODES_PER_ELEMENT = AbstractNonlinearElasticitySolver<DIM>::NUM_NODES_PER_ELEMENT
staticprotected

Number of nodes per element.

Definition at line 72 of file CompressibleNonlinearElasticitySolver.hpp.

template<size_t DIM>
const size_t CompressibleNonlinearElasticitySolver< DIM >::NUM_VERTICES_PER_ELEMENT = AbstractNonlinearElasticitySolver<DIM>::NUM_VERTICES_PER_ELEMENT
staticprotected

Number of vertices per element.

Definition at line 75 of file CompressibleNonlinearElasticitySolver.hpp.

template<size_t DIM>
const size_t CompressibleNonlinearElasticitySolver< DIM >::STENCIL_SIZE = DIM*NUM_NODES_PER_ELEMENT
staticprotected

Stencil size - number of unknowns per element (DIM*NUM_NODES_PER_ELEMENT displacement unknowns, no pressure unknowns.

Definition at line 84 of file CompressibleNonlinearElasticitySolver.hpp.

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