Chaste Commit::ca8ccdedf819b6e02855bc0e8e6f50bdecbc5208
ExplicitCardiacMechanicsSolver.cpp
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34*/
35
36#include "ExplicitCardiacMechanicsSolver.hpp"
37
38template<class ELASTICITY_SOLVER,unsigned DIM>
41 std::string outputDirectory)
43 rProblemDefinition,
44 outputDirectory)
45{
46
47}
48
49template<class ELASTICITY_SOLVER,unsigned DIM>
53
54template<class ELASTICITY_SOLVER,unsigned DIM>
56 unsigned currentQuadPointGlobalIndex,
57 bool assembleJacobian,
58 double& rActiveTension,
59 double& rDerivActiveTensionWrtLambda,
60 double& rDerivActiveTensionWrtDLambdaDt)
61{
62 // The iterator should be pointing to the right place (note: it is incremented at the end of this method)
63 // This iterator is used so that we don't have to search the map
64 assert(this->mMapIterator->first==currentQuadPointGlobalIndex);
65 DataAtQuadraturePoint& r_data_at_quad_point = this->mMapIterator->second;
66
67 // the active tensions have already been computed for each contraction model, so can
68 // return it straightaway..
69 rActiveTension = r_data_at_quad_point.ContractionModel->GetActiveTension();
70
71 // these are unset
72 rDerivActiveTensionWrtLambda = 0.0;
73 rDerivActiveTensionWrtDLambdaDt = 0.0;
74
75 // store the value of given for this quad point, so that it can be used when computing
76 // the active tension at the next timestep
77 r_data_at_quad_point.Stretch = currentFibreStretch;
78
79 // increment the iterator
80 this->mMapIterator++;
81 if (this->mMapIterator==this->mQuadPointToDataAtQuadPointMap.end())
82 {
83 this->mMapIterator = this->mQuadPointToDataAtQuadPointMap.begin();
84 }
85}
86
87template<class ELASTICITY_SOLVER,unsigned DIM>
88void ExplicitCardiacMechanicsSolver<ELASTICITY_SOLVER,DIM>::Solve(double time, double nextTime, double odeTimestep)
89{
90 assert(time < nextTime);
91 this->mCurrentTime = time;
92 this->mNextTime = nextTime;
93 this->mOdeTimestep = odeTimestep;
94
95 // assemble the residual again so that mStretches is set (in GetActiveTensionAndTensionDerivs)
96 // using the current deformation.
97 this->AssembleSystem(true,false);
98
99 // integrate contraction models
100 for (std::map<unsigned,DataAtQuadraturePoint>::iterator iter = this->mQuadPointToDataAtQuadPointMap.begin();
101 iter != this->mQuadPointToDataAtQuadPointMap.end();
102 iter++)
103 {
104 AbstractContractionModel* p_contraction_model = iter->second.ContractionModel;
105 double stretch = iter->second.Stretch;
106 p_contraction_model->SetStretchAndStretchRate(stretch, 0.0 /*dlam_dt*/);
107 p_contraction_model->RunAndUpdate(time, nextTime, odeTimestep);
108 }
109
110 // solve
111 ELASTICITY_SOLVER::Solve();
112}
113
virtual void RunAndUpdate(double startTime, double endTime, double timeStep)=0
virtual void SetStretchAndStretchRate(double stretch, double stretchRate)=0
virtual double GetActiveTension()=0
void GetActiveTensionAndTensionDerivs(double currentFibreStretch, unsigned currentQuadPointGlobalIndex, bool assembleJacobian, double &rActiveTension, double &rDerivActiveTensionWrtLambda, double &rDerivActiveTensionWrtDLambdaDt)
void Solve(double time, double nextTime, double odeTimestep)
ExplicitCardiacMechanicsSolver(QuadraticMesh< DIM > &rQuadMesh, ElectroMechanicsProblemDefinition< DIM > &rProblemDefinition, std::string outputDirectory)
AbstractContractionModel * ContractionModel