void elasticitySolver::solve()
{
//linearSystemFull<double> *lsys = new linearSystemFull<double>;
#if defined(HAVE_TAUCS)
linearSystemCSRTaucs<double> *lsys = new linearSystemCSRTaucs<double>;
#elif defined(HAVE_PETSC)
linearSystemPETSc<double> *lsys = new linearSystemPETSc<double>;
#else
linearSystemGmm<double> *lsys = new linearSystemGmm<double>;
lsys->setNoisy(2);
#endif
assemble(lsys);
lsys->systemSolve();
printf("-- done solving!\n");
GaussQuadrature Integ_Bulk(GaussQuadrature::GradGrad);
// printLinearSystem(lsys);
double energ=0;
for (unsigned int i = 0; i < elasticFields.size(); i++)
{
SolverField<SVector3> Field(pAssembler, LagSpace);
IsotropicElasticTerm Eterm(Field,elasticFields[i]._E,elasticFields[i]._nu);
BilinearTermToScalarTerm Elastic_Energy_Term(Eterm);
Assemble(Elastic_Energy_Term,elasticFields[i].g->begin(),elasticFields[i].g->end(),
Integ_Bulk,energ);
}
printf("elastic energy=%f\n",energ);
}
PView *elasticitySolver::buildVonMisesView(const std::string postFileName)
{
std::cout << "build elastic view"<< std::endl;
std::map<int, std::vector<double> > data;
GaussQuadrature Integ_Bulk(GaussQuadrature::GradGrad);
for (unsigned int i = 0; i < elasticFields.size(); ++i)
{
SolverField<SVector3> Field(pAssembler, LagSpace);
IsotropicElasticTerm Eterm(Field,elasticFields[i]._E,elasticFields[i]._nu);
BilinearTermToScalarTerm Elastic_Energy_Term(Eterm);
for (groupOfElements::elementContainer::const_iterator it = elasticFields[i].g->begin();
it != elasticFields[i].g->end(); ++it)
{
MElement *e=*it;
double energ;
IntPt *GP;
int npts=Integ_Bulk.getIntPoints(e,&GP);
Elastic_Energy_Term.get(e,npts,GP,energ);
std::vector<double> vec;
vec.push_back(energ);
data[(*it)->getNum()]=vec;
}
}
PView *pv = new PView (postFileName, "ElementData", pModel, data, 0.0);
return pv;
}
void elasticitySolver::solve()
{
std::string sysname = "A";
if(pAssembler && pAssembler->getLinearSystem(sysname))
delete pAssembler->getLinearSystem(sysname);
#if defined(HAVE_PETSC)
linearSystemPETSc<double> *lsys = new linearSystemPETSc<double>;
#elif defined(HAVE_GMM)
linearSystemCSRGmm<double> *lsys = new linearSystemCSRGmm<double>;
#else
linearSystemFull<double> *lsys = new linearSystemFull<double>;
#endif
assemble(lsys);
// printLinearSystem(lsys,pAssembler->sizeOfR());
lsys->systemSolve();
printf("-- done solving!\n");
double energ = 0;
GaussQuadrature Integ_Bulk(GaussQuadrature::GradGrad);
for(std::size_t i = 0; i < elasticFields.size(); i++) {
SolverField<SVector3> Field(pAssembler, LagSpace);
IsotropicElasticTerm Eterm(Field, elasticFields[i]._e,
elasticFields[i]._nu);
BilinearTermToScalarTerm Elastic_Energy_Term(Eterm);
Assemble(Elastic_Energy_Term, elasticFields[i].g->begin(),
elasticFields[i].g->end(), Integ_Bulk, energ);
}
printf("elastic energy=%f\n", energ);
}
void elasticitySolver::postSolve()
{
GaussQuadrature Integ_Bulk(GaussQuadrature::GradGrad);
double energ=0;
for (unsigned int i = 0; i < elasticFields.size(); i++)
{
SolverField<SVector3> Field(pAssembler, LagSpace);
IsotropicElasticTerm Eterm(Field,elasticFields[i]._E,elasticFields[i]._nu);
BilinearTermToScalarTerm Elastic_Energy_Term(Eterm);
Assemble(Elastic_Energy_Term, elasticFields[i].g->begin(),
elasticFields[i].g->end(), Integ_Bulk, energ);
}
printf("elastic energy=%f\n",energ);
}
PView* elasticitySolver::buildStressesView (const std::string postFileName)
{
std::cout << "build stresses view"<< std::endl;
std::map<int, std::vector<double> > data;
GaussQuadrature Integ_Bulk(GaussQuadrature::GradGrad);
for (unsigned int i = 0; i < elasticFields.size(); ++i)
{
double E = elasticFields[i]._E;
double nu = elasticFields[i]._nu;
SolverField<SVector3> Field(pAssembler, LagSpace);
IsotropicElasticTerm Eterm(Field,elasticFields[i]._E,elasticFields[i]._nu);
BilinearTermToScalarTerm Elastic_Energy_Term(Eterm);
for (groupOfElements::elementContainer::const_iterator it = elasticFields[i].g->begin();
it != elasticFields[i].g->end(); ++it)
{
MElement *e=*it;
int nbVertex = e->getNumVertices();
std::vector<SVector3> val(nbVertex);
double valx[256];
double valy[256];
double valz[256];
for (int k = 0; k < nbVertex; k++){
MVertex *v = e->getVertex(k);
MPoint p(v);
Field.f(&p,0,0,0,val[k]);
valx[k] =val[k](0);
valy[k] =val[k](1);
valz[k] =val[k](2);
}
double gradux[3];
double graduy[3];
double graduz[3];
double u=0.33, v=0.33, w=0.0;
e->interpolateGrad(valx, u, v, w, gradux);
e->interpolateGrad(valy, u, v, w, graduy);
e->interpolateGrad(valz, u, v, w, graduz);
double eps[6] = {gradux[0], graduy[1], graduz[2],
0.5 * (gradux[1] + graduy[0]),
0.5 * (gradux[2] + graduz[0]),
0.5 * (graduy[2] + graduz[1])};
double A = E / (1. + nu);
double B = A * (nu / (1. - 2 * nu));
double trace = eps[0] + eps[1] + eps[2] ;
double sxx = A * eps[0] + B * trace;
double syy = A * eps[1] + B * trace;
double szz = A * eps[2] + B * trace;
double sxy = A * eps[3];
double sxz = A * eps[4];
double syz = A * eps[5];
std::vector<double> vec(9);
vec[0]=sxx; vec[1]=sxy; vec[2]=sxz; vec[3]=sxy; vec[4]=syy;
vec[5]=syz; vec[6]=sxz; vec[7]=syz; vec[8]=szz;
data[e->getNum()]=vec;
}
}
PView *pv = new PView (postFileName, "ElementData", pModel, data, 0.0);
return pv;
}
