trabbonenl3d.C

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/*
 *
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2025   Borek Patzak
 *
 *
 *
 *       Czech Technical University, Faculty of Civil Engineering,
 *   Department of Structural Mechanics, 166 29 Prague, Czech Republic
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
#include "trabbonenl3d.h"
#include "sm/Elements/structuralelement.h"
#include "gausspoint.h"
#include "floatmatrix.h"
#include "floatarray.h"
#include "mathfem.h"
#include "sparsemtrx.h"
#include "nonlocalmaterialext.h"
#include "classfactory.h"
#include "dynamicinputrecord.h"
#include "unknownnumberingscheme.h"
 
#ifdef __OOFEG
 #include "oofeggraphiccontext.h"
 #include "connectivitytable.h"
#endif
 
#include <cstdlib>
 
namespace oofem {
REGISTER_Material(TrabBoneNL3D);
 
TrabBoneNL3D :: TrabBoneNL3D(int n, Domain *d) : TrabBone3D(n, d), StructuralNonlocalMaterialExtensionInterface(d), NonlocalMaterialStiffnessInterface()
{
}
 
 
void
TrabBoneNL3D :: updateBeforeNonlocAverage(const FloatArray &strainVector, GaussPoint *gp, TimeStep *tStep) const
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
    FloatArray SDstrainVector;
 
    this->initTempStatus(gp);
    this->giveStressDependentPartOfStrainVector(SDstrainVector, gp, strainVector, tStep, VM_Total);
 
    nlStatus->letTempStrainVectorBe(strainVector);
 
    this->performPlasticityReturn(gp, strainVector, tStep);
    double cumPlastStrain = this->computeLocalCumPlastStrain(strainVector, gp, tStep);
    nlStatus->setLocalCumPlastStrainForAverage(cumPlastStrain);
}
 
 
FloatMatrixF<6,6>
TrabBoneNL3D :: give3dMaterialStiffnessMatrix(MatResponseMode mode, GaussPoint *gp,
                                              TimeStep *tStep) const
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
 
    if ( mode == ElasticStiffness ) {
        auto compliance = this->constructAnisoComplTensor();
        auto elasticity = inv(compliance);
        return elasticity;
    } else if ( mode == SecantStiffness ) {
        auto compliance = this->constructAnisoComplTensor();
        auto elasticity = inv(compliance);
        auto tempDam = nlStatus->giveTempDam();
        return elasticity * (1.0 - tempDam);
    } else /*if ( mode == TangentStiffness )*/ {
        double kappa = nlStatus->giveKappa();
        double tempKappa = nlStatus->giveTempKappa();
        double dKappa = tempKappa - kappa;
        if ( dKappa < 10.e-9 ) {
            dKappa = 0;
        }
 
        if ( dKappa > 0.0 ) {
            // Imports
            auto &tempEffectiveStress = nlStatus->giveTempEffectiveStress();
            double nlKappa = this->computeCumPlastStrain(gp, tStep);
            double tempDam = nlStatus->giveTempDam();
            double dam = nlStatus->giveDam();
            auto &plasFlowDirec = nlStatus->givePlasFlowDirec();
            auto &SSaTensor = nlStatus->giveSSaTensor();
            double beta = nlStatus->giveBeta();
 
            // Construction of the dyadic product tensor
            auto prodTensor = Tdot(SSaTensor, plasFlowDirec);
            // Construction of the tangent stiffness second term
            auto secondTerm = dyad(dot(SSaTensor, plasFlowDirec), prodTensor) * (-( 1.0 - tempDam ) / beta);
 
            auto tangentMatrix = SSaTensor * (1.0 - tempDam) + secondTerm;
 
            // Construction of the tangent stiffness third term
            if ( tempDam - dam > 0 ) {
                tangentMatrix += dyad(tempEffectiveStress, prodTensor) * (-expDam * critDam * exp(-expDam * nlKappa) * ( 1.0 - mParam ) / beta);
                
            }
            return tangentMatrix;
        } else {
            // Import of state variables
            double tempDam = nlStatus->giveTempDam();
            // Construction of the tangent stiffness
            auto compliance = this->constructAnisoComplTensor();
            auto elasticity = inv(compliance);
            return elasticity * (1.0 - tempDam);
        }
    }
}
 
 
void
TrabBoneNL3D :: NonlocalMaterialStiffnessInterface_addIPContribution(SparseMtrx &dest, const UnknownNumberingScheme &s, GaussPoint *gp, TimeStep *tStep)
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
    auto list = nlStatus->giveIntegrationDomainList();
 
    FloatArray rcontrib, lcontrib;
    IntArray loc, rloc;
 
    FloatMatrix contrib;
 
    if ( this->giveLocalNonlocalStiffnessContribution(gp, loc, s, lcontrib, tStep) == 0 ) {
        return;
    }
 
    for ( auto &lir: *list ) {
        auto rmat = dynamic_cast< TrabBoneNL3D * >( lir.nearGp->giveMaterial() );
        if ( rmat ) {
            rmat->giveRemoteNonlocalStiffnessContribution(lir.nearGp, rloc, s, rcontrib, tStep);
            double coeff = gp->giveElement()->computeVolumeAround(gp) * lir.weight / nlStatus->giveIntegrationScale();
 
            contrib.clear();
            contrib.plusDyadUnsym(lcontrib, rcontrib, - 1.0 * coeff);
            dest.assemble(loc, rloc, contrib);
        }
    }
}
 
std :: vector< localIntegrationRecord > *
TrabBoneNL3D :: NonlocalMaterialStiffnessInterface_giveIntegrationDomainList(GaussPoint *gp)
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
    this->buildNonlocalPointTable(gp);
    return nlStatus->giveIntegrationDomainList();
}
 
int
TrabBoneNL3D :: giveLocalNonlocalStiffnessContribution(GaussPoint *gp, IntArray &loc, const UnknownNumberingScheme &s,
                                                       FloatArray &lcontrib, TimeStep *tStep)
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
    auto elem = static_cast< StructuralElement * >( gp->giveElement() );
 
    double nlKappa = this->computeCumPlastStrain(gp, tStep);
    double dam = nlStatus->giveDam();
    double tempDam = nlStatus->giveTempDam();
 
    if ( ( tempDam - dam ) > 0.0 ) {
        FloatMatrix b;
 
        elem->giveLocationArray(loc, s);
        auto &localNu = nlStatus->giveTempEffectiveStress();
 
        elem->giveLocationArray(loc, EModelDefaultEquationNumbering() );
        elem->computeBmatrixAt(gp, b);
        double dDamFunc = expDam * critDam * exp(-expDam * nlKappa);
 
        int nrows = b.giveNumberOfColumns();
        int nsize = localNu.giveSize();
        lcontrib.resize(nrows);
        for ( int i = 1; i <= nrows; i++ ) {
            double sum = 0.0;
            for ( int j = 1; j <= nsize; j++ ) {
                sum += b.at(j, i) * localNu.at(j);
            }
 
            lcontrib.at(i) = mParam * dDamFunc * sum;
        }
 
        return 1;
    } else {
        loc.clear();
        return 0;
    }
}
 
void
TrabBoneNL3D :: giveRemoteNonlocalStiffnessContribution(GaussPoint *gp, IntArray &rloc, const UnknownNumberingScheme &s,
                                                        FloatArray &rcontrib, TimeStep *tStep)
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
    auto elem = static_cast< StructuralElement * >( gp->giveElement() );
 
    FloatMatrix b;
 
    elem->giveLocationArray(rloc, s);
    elem->computeBmatrixAt(gp, b);
 
    double kappa = nlStatus->giveKappa();
    double tempKappa = nlStatus->giveTempKappa();
    double dKappa = tempKappa - kappa;
    if ( dKappa < 10.e-9 ) {
        dKappa = 0;
    }
 
    if ( dKappa > 0.0 ) {
        FloatArray remoteNu, prodTensor;
        const FloatArray &plasFlowDirec = nlStatus->givePlasFlowDirec();
        const FloatMatrix &SSaTensor = nlStatus->giveSSaTensor();
        double beta = nlStatus->giveBeta();
 
        prodTensor.beTProductOf(SSaTensor, plasFlowDirec);
        remoteNu = 1 / beta * prodTensor;
        rcontrib.beTProductOf(b, remoteNu);
    } else {
        rcontrib.resize(b.giveNumberOfColumns());
        rcontrib.zero();
    }
}
 
 
FloatArrayF<6>
TrabBoneNL3D :: giveRealStressVector_3d(const FloatArrayF<6> &strain, GaussPoint *gp,
                                        TimeStep *tStep) const
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
 
    this->initTempStatus(gp);
 
    performPlasticityReturn(gp, strain, tStep);
    auto tempDam = computeDamage(gp, tStep);
    auto &effStress = nlStatus->giveTempEffectiveStress();
 
    auto stress = ( 1 - tempDam ) * effStress;
 
    for ( int i = 1; i <= 6; i++ ) {
        if ( sqrt( stress.at(i) * stress.at(i) ) < 1e-8 ) {
            stress.at(i) = 0.;
        }
    }
 
    computePlasStrainEnerDensity(gp, strain, stress);
 
    if ( densCrit != 0. ) {
        stress += computeDensificationStress(gp, strain, tStep);
    }
 
    nlStatus->setTempDam(tempDam);
    nlStatus->letTempStrainVectorBe(strain);
    nlStatus->letTempStressVectorBe(stress);
    return stress;
}
 
 
double
TrabBoneNL3D :: computeCumPlastStrain(GaussPoint *gp, TimeStep *tStep) const
{
    auto nlStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(gp) );
 
    this->buildNonlocalPointTable(gp);
    this->updateDomainBeforeNonlocAverage(tStep);
 
    auto list = nlStatus->giveIntegrationDomainList();
 
    double nonlocalCumPlastStrain = 0.0;
    for ( auto &lir: *list ) {
        auto nonlocStatus = static_cast< TrabBoneNL3DStatus * >( this->giveStatus(lir.nearGp) );
        double nonlocalContribution = nonlocStatus->giveLocalCumPlastStrainForAverage();
        nonlocalContribution *= lir.weight;
        nonlocalCumPlastStrain += nonlocalContribution;
    }
 
    nonlocalCumPlastStrain *= 1. / nlStatus->giveIntegrationScale();
 
    double localCumPlastStrain = nlStatus->giveLocalCumPlastStrainForAverage();
    return mParam * nonlocalCumPlastStrain + ( 1 - mParam ) * localCumPlastStrain;
}
 
 
Interface *
TrabBoneNL3D :: giveInterface(InterfaceType type)
{
    if ( type == NonlocalMaterialExtensionInterfaceType ) {
        return static_cast< StructuralNonlocalMaterialExtensionInterface * >(this);
    } else if ( type == NonlocalMaterialStiffnessInterfaceType ) {
        return static_cast< NonlocalMaterialStiffnessInterface * >(this);
    } else {
        return nullptr;
    }
}
 
 
void
TrabBoneNL3D :: initializeFrom(InputRecord &ir)
{
    TrabBone3D :: initializeFrom(ir);
    StructuralNonlocalMaterialExtensionInterface :: initializeFrom(ir);
 
    IR_GIVE_FIELD(ir, R, _IFT_TrabBoneNL3D_r);
    if ( R < 0.0 ) {
        R = 0.0;
    }
 
    mParam = 2.;
    IR_GIVE_OPTIONAL_FIELD(ir, mParam, _IFT_TrabBoneNL3D_m);
}
 
 
void
TrabBoneNL3D :: giveInputRecord(DynamicInputRecord &input)
{
    TrabBone3D :: giveInputRecord(input);
    input.setField(this->R, _IFT_TrabBoneNL3D_r);
    input.setField(this->mParam, _IFT_TrabBoneNL3D_m);
}
 
 
 
double
TrabBoneNL3D :: computeWeightFunction(const double R,  const FloatArray &src, const FloatArray &coord) const
{
    double dist = distance(src, coord);
 
    if ( ( dist >= 0. ) && ( dist <= this->R ) ) {
        double help = ( 1. - dist * dist / ( R * R ) );
        return help * help;
    }
 
    return 0.0;
}
 

 
TrabBoneNL3DStatus :: TrabBoneNL3DStatus(GaussPoint *g) :
    TrabBone3DStatus(g), StructuralNonlocalMaterialStatusExtensionInterface()
{
}
 
 
void
TrabBoneNL3DStatus :: printOutputAt(FILE *file, TimeStep *tStep) const
{
    StructuralMaterialStatus :: printOutputAt(file, tStep);
    fprintf(file, "status {");
    fprintf(file, " plastrains ");
    for ( auto &val : plasDef ) {
        fprintf( file, " %.4e", val );
    }
 
    fprintf(file, " ,");
    fprintf(file, " kappa %.4e ,", kappa);
    fprintf(file, " dam  %.4e ,", tempDam);
    fprintf(file, " esed  %.4e ,", this->tempTSED - this->tempPSED);
    fprintf(file, " psed  %.4e ,", this->tempPSED);
    fprintf(file, " tsed  %.4e", this->tempTSED);
    fprintf(file, "}\n");
}
 
 
void
TrabBoneNL3DStatus :: initTempStatus()
{
    TrabBone3DStatus :: initTempStatus();
}
 
 
void
TrabBoneNL3DStatus :: updateYourself(TimeStep *tStep)
{
    TrabBone3DStatus :: updateYourself(tStep);
}
 
 
Interface *
TrabBoneNL3DStatus :: giveInterface(InterfaceType type)
{
    if ( type == NonlocalMaterialStatusExtensionInterfaceType ) {
        return this;
    } else {
        return nullptr;
    }
}
 
 
int
TrabBoneNL3D :: packUnknowns(DataStream &buff, TimeStep *tStep, GaussPoint *ip)
{
    abort();
 #if 0
    IDNLMaterialStatus *nlStatus = static_cast< IDNLMaterialStatus * >( this->giveStatus(ip) );
 
    this->buildNonlocalPointTable(ip);
    this->updateDomainBeforeNonlocAverage(tStep);
 
    return buff.write( nlStatus->giveLocalEquivalentStrainForAverage() );
 
 #endif
}
 
int
TrabBoneNL3D :: unpackAndUpdateUnknowns(DataStream &buff, TimeStep *tStep, GaussPoint *ip)
{
    abort();
 #if 0
    int result;
    IDNLMaterialStatus *nlStatus = static_cast< IDNLMaterialStatus * >( this->giveStatus(ip) );
    double localEquivalentStrainForAverage;
 
    result = buff.read(localEquivalentStrainForAverage);
    nlStatus->setLocalEquivalentStrainForAverage(localEquivalentStrainForAverage);
    return result;
 
 #endif
}
 
int
TrabBoneNL3D :: estimatePackSize(DataStream &buff, GaussPoint *ip)
{
    abort();
 #if 0
    // Note: nlStatus localStrainVectorForAverage memeber must be properly sized!
    // IDNLMaterialStatus *nlStatus = (IDNLMaterialStatus*) this -> giveStatus (ip);
    return buff.givePackSizeOfDouble(1);
 
 #endif
}
 
//
// END: PARALLEL MODE OPTION
} // end namespace oofem