void FE2FluidMaterial :: giveVolumetricPressureStiffness(double &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) { FE2FluidMaterialStatus *ms = static_cast<FE2FluidMaterialStatus*> (this->giveStatus(gp)); ms->computeTangents(tStep); if ( mode == TangentStiffness ) { answer = ms->giveVolumetricPressureTangent(); #ifdef DEBUG_TANGENT // Numerical ATS for debugging FloatArray strain(3); strain.zero(); FloatArray sig; double epspvol, epspvolh, pressure = 0.0; double h = 1.0; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector(sig, epspvol, gp, strain, pressure, tStep); computeDeviatoricStressVector(sig, epspvolh, gp, strain, pressure+h, tStep); double dvol = (epspvolh - epspvol)/h; printf("Analytical volumetric pressure tangent = %e\n", answer); printf("Numerical volumetric pressure tangent = %e\n", dvol); double norm = fabs(dvol - answer); if (norm > fabs(answer)*DEBUG_ERR && norm > 0.0) { OOFEM_ERROR("Error in volumetric pressure tangent"); } #endif } else { OOFEM_ERROR("Mode not implemented"); } }
void FE2FluidMaterial :: giveDeviatoricPressureStiffness(FloatArray &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) { FE2FluidMaterialStatus *ms = static_cast<FE2FluidMaterialStatus*> (this->giveStatus(gp)); ms->computeTangents(tStep); if ( mode == TangentStiffness ) { answer = ms->giveDeviatoricPressureTangent(); #ifdef DEBUG_TANGENT // Numerical ATS for debugging FloatArray strain(3); strain.zero(); FloatArray sig, sigh; double epspvol, pressure = 0.0; double h = 1.00; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector (sig, epspvol, gp, strain, pressure, tStep); computeDeviatoricStressVector (sigh, epspvol, gp, strain, pressure+h, tStep); FloatArray dsigh; dsigh.beDifferenceOf(sigh,sig); dsigh.times(1/h); printf("Analytical deviatoric pressure tangent = "); answer.printYourself(); printf("Numerical deviatoric pressure tangent = "); dsigh.printYourself(); dsigh.subtract(answer); double norm = dsigh.computeNorm(); if (norm > answer.computeNorm()*DEBUG_ERR && norm > 0.0) { OOFEM_ERROR("Error in deviatoric pressure tangent"); } #endif } else { OOFEM_ERROR("Mode not implemented"); } }
void FE2FluidMaterial :: giveDeviatoricStiffnessMatrix(FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) { FE2FluidMaterialStatus *ms = static_cast<FE2FluidMaterialStatus*> (this->giveStatus(gp)); ms->computeTangents(tStep); if ( mode == TangentStiffness ) { answer = ms->giveDeviatoricTangent(); #ifdef DEBUG_TANGENT // Numerical ATS for debugging FloatArray tempStrain(3); tempStrain.zero(); FloatArray sig, strain, sig11, sig22, sig12; double epspvol; computeDeviatoricStressVector (sig, epspvol, gp, tempStrain, 0.0, tStep); double h = 0.001; // Linear problem, size of this doesn't matter. strain.resize(3); strain = tempStrain; strain.at(1) += h; computeDeviatoricStressVector (sig11, epspvol, gp, strain, 0.0, tStep); strain = tempStrain; strain.at(2) += h; computeDeviatoricStressVector (sig22, epspvol, gp, strain, 0.0, tStep); strain = tempStrain; strain.at(3) += h; computeDeviatoricStressVector (sig12, epspvol, gp, strain, 0.0, tStep); FloatArray dsig11; dsig11.beDifferenceOf(sig11,sig); dsig11.times(1/h); FloatArray dsig22; dsig22.beDifferenceOf(sig22,sig); dsig22.times(1/h); FloatArray dsig12; dsig12.beDifferenceOf(sig12,sig); dsig12.times(1/h); FloatMatrix numericalATS; numericalATS.resize(3,3); numericalATS.zero(); numericalATS.setColumn(dsig11,1); numericalATS.setColumn(dsig22,2); numericalATS.setColumn(dsig12,3); printf("Analytical deviatoric tangent = "); answer.printYourself(); printf("Numerical deviatoric tangent = "); numericalATS.printYourself(); numericalATS.subtract(answer); double norm = numericalATS.computeFrobeniusNorm(); if (norm > answer.computeFrobeniusNorm()*DEBUG_ERR && norm > 0.0) { OOFEM_ERROR("Error in deviatoric tangent"); } #endif } else { OOFEM_ERROR("Mode not implemented"); } }
void FE2FluidMaterial :: giveVolumetricDeviatoricStiffness(FloatArray &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) { FE2FluidMaterialStatus *ms = static_cast<FE2FluidMaterialStatus*> (this->giveStatus(gp)); ms->computeTangents(tStep); if ( mode == TangentStiffness ) { answer = ms->giveVolumetricDeviatoricTangent(); #ifdef DEBUG_TANGENT // Numerical ATS for debugging FloatArray tempStrain(3); tempStrain.zero(); FloatArray sig, strain; double epspvol, epspvol11, epspvol22, epspvol12, pressure = 0.0; double h = 1.0; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector (sig, epspvol, gp, tempStrain, pressure, tStep); strain = tempStrain; strain.at(1) += h; computeDeviatoricStressVector(sig, epspvol11, gp, strain, pressure, tStep); strain = tempStrain; strain.at(2) += h; computeDeviatoricStressVector(sig, epspvol22, gp, strain, pressure, tStep); strain = tempStrain; strain.at(3) += h; computeDeviatoricStressVector(sig, epspvol12, gp, strain, pressure, tStep); FloatArray dvol(3); dvol.at(1) = (epspvol11 - epspvol)/h; dvol.at(2) = (epspvol22 - epspvol)/h; dvol.at(3) = (epspvol12 - epspvol)/h; dvol.at(1) += 1.0; dvol.at(2) += 1.0; printf("Analytical volumetric deviatoric tangent = "); answer.printYourself(); printf("Numerical volumetric deviatoric tangent = "); dvol.printYourself(); dvol.subtract(answer); double norm = dvol.computeNorm(); if (norm > answer.computeNorm()*DEBUG_ERR && norm > 0.0) { OOFEM_ERROR("Error in volumetric deviatoric tangent"); } #endif } else { OOFEM_ERROR("Mode not implemented"); } }
int FE2FluidMaterial :: giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) { FE2FluidMaterialStatus *status = static_cast< FE2FluidMaterialStatus * >( this->giveStatus(gp) ); if ( type == IST_VOFFraction ) { answer = FloatArray{status->giveVOFFraction()}; return true; } else if ( type == IST_Pressure ) { answer = FloatArray{status->givePressure()}; return true; } else if ( type == IST_Undefined ) { ///@todo What should one call this value? Relation between pressure and volumetric strain-rate. #if 0 // Numerical ATS for debugging FloatArray strain(3); strain.zero(); FloatArray sig; double epspvol, epspvolh, pressure = 0.0; double h = 1.0; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector(sig, epspvol, gp, strain, pressure, tStep); computeDeviatoricStressVector(sig, epspvolh, gp, strain, pressure + h, tStep); double dvol = - ( epspvolh - epspvol ) / h; printf("Analytical volumetric pressure tangent = %f\n", status->giveVolumetricPressureTangent()); printf("Numerical volumetric pressure tangent = %f\n", dvol); double norm = fabs(dvol - status->giveVolumetricPressureTangent()); if ( norm > fabs(status->giveVolumetricPressureTangent()) * DEBUG_ERR && norm > 0.0 ) { OOFEM_ERROR("Error in volumetric pressure tangent"); } #endif answer = FloatArray{status->giveVolumetricPressureTangent()}; return true; } else { return FluidDynamicMaterial :: giveIPValue(answer, gp, type, tStep); } }
void BinghamFluidMaterial2 :: __debug(GaussPoint *gp, TimeStep *atTime) { BinghamFluidMaterial2Status *status = static_cast< BinghamFluidMaterial2Status * >( this->giveStatus(gp) ); const FloatArray &epsd = status->giveTempDeviatoricStrainVector(); const FloatArray &sigd = status->giveTempDeviatoricStrainVector() for ( int i = 1; i <= nincr; i++ ) { eps.add(eps_i); computeDeviatoricStressVector(tau, gp, eps, atTime); giveDeviatoricStiffnessMatrix(d, TangentStiffness, gp, atTime); tau_t.beProductOf(d, eps_i); tau_t.add(tau_p); //tau.printYourself(); //tau_t.printYourself(); //d.printYourself(); printf( "%e %e %e %e %e %e %e %e %e\n", eps.at(1), eps.at(2), eps.at(3), tau.at(1), tau.at(2), tau.at(3), tau_t.at(1), tau_t.at(2), tau_t.at(3) ); tau_p = tau_t; } }
void FE2FluidMaterial :: giveStiffnessMatrices(FloatMatrix &dsdd, FloatArray &dsdp, FloatArray &dedd, double &dedp, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) { FE2FluidMaterialStatus *ms = static_cast< FE2FluidMaterialStatus * >( this->giveStatus(gp) ); ms->computeTangents(tStep); if ( mode == TangentStiffness ) { dsdd = ms->giveDeviatoricTangent(); dsdp = ms->giveDeviatoricPressureTangent(); dedd = ms->giveVolumetricDeviatoricTangent(); dedp = ms->giveVolumetricPressureTangent(); #if 0 // Numerical ATS for debugging FloatMatrix numericalATS(6, 6); FloatArray dsig; FloatArray tempStrain(6); tempStrain.zero(); FloatArray sig, strain, sigPert; double epspvol; computeDeviatoricStressVector(sig, epspvol, gp, tempStrain, 0., tStep); double h = 0.001; // Linear problem, size of this doesn't matter. for ( int k = 1; k <= 6; ++k ) { strain = tempStrain; strain.at(k) += h; double tmp = strain.at(1) + strain.at(2) + strain.at(3); strain.at(1) -= tmp/3.0; strain.at(2) -= tmp/3.0; strain.at(3) -= tmp/3.0; strain.printYourself(); computeDeviatoricStressVector(sigPert, epspvol, gp, strain, 0., tStep); sigPert.printYourself(); dsig.beDifferenceOf(sigPert, sig); numericalATS.setColumn(dsig, k); } numericalATS.times(1. / h); printf("Analytical deviatoric tangent = "); dsdd.printYourself(); printf("Numerical deviatoric tangent = "); numericalATS.printYourself(); numericalATS.subtract(dsdd); double norm = numericalATS.computeFrobeniusNorm(); if ( norm > dsdd.computeFrobeniusNorm() * DEBUG_ERR && norm > 0.0 ) { OOFEM_ERROR("Error in deviatoric tangent"); } #endif #if 0 // Numerical ATS for debugging FloatArray strain(3); strain.zero(); FloatArray sig, sigh; double epspvol, pressure = 0.0; double h = 1.00; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector(sig, epspvol, gp, strain, pressure, tStep); computeDeviatoricStressVector(sigh, epspvol, gp, strain, pressure + h, tStep); FloatArray dsigh; dsigh.beDifferenceOf(sigh, sig); dsigh.times(1 / h); printf("Analytical deviatoric pressure tangent = "); dsdp.printYourself(); printf("Numerical deviatoric pressure tangent = "); dsigh.printYourself(); dsigh.subtract(dsdp); double norm = dsigh.computeNorm(); if ( norm > dsdp.computeNorm() * DEBUG_ERR && norm > 0.0 ) { OOFEM_ERROR("Error in deviatoric pressure tangent"); } #endif #if 0 // Numerical ATS for debugging FloatArray tempStrain(3); tempStrain.zero(); FloatArray sig, strain; double epspvol, epspvol11, epspvol22, epspvol12, pressure = 0.0; double h = 1.0; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector(sig, epspvol, gp, tempStrain, pressure, tStep); strain = tempStrain; strain.at(1) += h; computeDeviatoricStressVector(sig, epspvol11, gp, strain, pressure, tStep); strain = tempStrain; strain.at(2) += h; computeDeviatoricStressVector(sig, epspvol22, gp, strain, pressure, tStep); strain = tempStrain; strain.at(3) += h; computeDeviatoricStressVector(sig, epspvol12, gp, strain, pressure, tStep); FloatArray dvol(3); dvol.at(1) = ( epspvol11 - epspvol ) / h; dvol.at(2) = ( epspvol22 - epspvol ) / h; dvol.at(3) = ( epspvol12 - epspvol ) / h; dvol.at(1) += 1.0; dvol.at(2) += 1.0; printf("Analytical volumetric deviatoric tangent = "); dedd.printYourself(); printf("Numerical volumetric deviatoric tangent = "); dvol.printYourself(); dvol.subtract(dedd); double norm = dvol.computeNorm(); if ( norm > dedd.computeNorm() * DEBUG_ERR && norm > 0.0 ) { OOFEM_ERROR("Error in volumetric deviatoric tangent"); } #endif #if 0 // Numerical ATS for debugging FloatArray strain(3); strain.zero(); FloatArray sig; double epspvol, epspvolh, pressure = 0.0; double h = 1.0; // Linear problem, size of this doesn't matter. computeDeviatoricStressVector(sig, epspvol, gp, strain, pressure, tStep); computeDeviatoricStressVector(sig, epspvolh, gp, strain, pressure + h, tStep); double dvol = -( epspvolh - epspvol ) / h; printf("Analytical volumetric pressure tangent = %e\n", dedp); printf("Numerical volumetric pressure tangent = %e\n", dvol); double norm = fabs(dvol - dedp); if ( norm > fabs(dedp) * DEBUG_ERR && norm > 0.0 ) { OOFEM_ERROR("Error in volumetric pressure tangent"); } #endif } else { OOFEM_ERROR("Mode not implemented"); } }