interfaceelem2dlin.C

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/*
 *
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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 "interfaceelem2dlin.h"
#include "node.h"
#include "gausspoint.h"
#include "gaussintegrationrule.h"
#include "floatmatrix.h"
#include "floatmatrixf.h"
#include "floatarray.h"
#include "floatarrayf.h"
#include "intarray.h"
#include "mathfem.h"
#include "fei2dlinelin.h"
#include "sm/CrossSections/structuralinterfacecrosssection.h"
#include "classfactory.h"
#include "parametermanager.h"
#include "paramkey.h"
 
#ifdef __OOFEG
 #include "oofeggraphiccontext.h"
 #include <Emarkwd3d.h>
#endif
 
namespace oofem {
REGISTER_Element(InterfaceElem2dLin);
ParamKey InterfaceElem2dLin::IPK_InterfaceElem2dLin_axisymmode("axisymmode");
 
FEI2dLineLin InterfaceElem2dLin :: interp(1, 2);
 
 
InterfaceElem2dLin :: InterfaceElem2dLin(int n, Domain *aDomain) :
    StructuralElement(n, aDomain)
{
    numberOfDofMans       = 4;
    axisymmode            = false;
}
 
 
void
InterfaceElem2dLin :: computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int li, int ui)
//
// Returns linear part of geometrical equations of the receiver at gp.
// Returns the linear part of the B matrix
//
{
    FloatArray n;
    this->interp.evalN (n, gp->giveNaturalCoordinates(), FEIElementGeometryWrapper(this));
 
    answer.resize(2, 8);
    answer.zero();
 
    answer.at(1, 2) = answer.at(2, 1) = -n.at(1);
    answer.at(1, 4) = answer.at(2, 3) = -n.at(2);
 
    answer.at(1, 6) = answer.at(2, 5) = n.at(1);
    answer.at(1, 8) = answer.at(2, 7) = n.at(2);
}
 
 
void
InterfaceElem2dLin :: computeGaussPoints()
// Sets up the array of Gauss Points of the receiver.
{
    if ( integrationRulesArray.size() == 0 ) {
        integrationRulesArray.resize( 1 );
        integrationRulesArray [ 0 ] = std::make_unique<GaussIntegrationRule>(1, this, 1, 2);
        integrationRulesArray [ 0 ]->SetUpPointsOnLine(2, _2dInterface); 
    }
}
 
 
double
InterfaceElem2dLin :: computeVolumeAround(GaussPoint *gp)
// Returns the length of the receiver. This method is valid only if 1
// Gauss point is used.
{
    double r = 1.0;
    if (this->axisymmode) {
        FloatArray n(2);
        this->interp.evalN( n, gp->giveNaturalCoordinates(), FEIElementGeometryWrapper(this) );
        r = n.at(1)*this->giveNode(1)->giveCoordinate(1) + n.at(2)*this->giveNode(2)->giveCoordinate(1);
    }
 
 
    double result = this->interp.giveTransformationJacobian(gp->giveNaturalCoordinates(), FEIElementGeometryWrapper(this));
    return result * gp->giveWeight() * r;
}
 
 
void
InterfaceElem2dLin :: computeStressVector(FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep)
{
    answer = static_cast< StructuralInterfaceCrossSection* >(this->giveCrossSection())->giveEngTraction_2d(strain, gp, tStep);
}
 
 
void
InterfaceElem2dLin :: computeConstitutiveMatrixAt(FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
{
    answer = static_cast< StructuralInterfaceCrossSection* >(this->giveCrossSection())->give2dStiffnessMatrix_Eng(rMode, gp, tStep);
}
 
 
void
InterfaceElem2dLin :: initializeFrom(InputRecord &ir, int priority)
{
    ParameterManager &ppm =  this->giveDomain()->elementPPM;
    PM_UPDATE_PARAMETER(axisymmode, ppm, ir, this->number, IPK_InterfaceElem2dLin_axisymmode, priority) ;
    StructuralElement :: initializeFrom(ir, priority);
}
 
 
void
InterfaceElem2dLin :: giveDofManDofIDMask(int inode, IntArray &answer) const
{
    answer = {D_u, D_v};
}
 
 
bool
InterfaceElem2dLin :: computeGtoLRotationMatrix(FloatMatrix &answer)
{
    FloatArray grad(2);
 
    // tangent
    grad.at(1) = this->giveNode(2)->giveCoordinate(1) - this->giveNode(1)->giveCoordinate(1);
    grad.at(2) = this->giveNode(2)->giveCoordinate(2) - this->giveNode(1)->giveCoordinate(2);
    grad.normalize();
 
    answer.resize(8, 8);
    for ( int i = 0; i < 4; i++ ) {
        answer.at(i * 2 + 1, i * 2 + 1) = grad.at(1);
        answer.at(i * 2 + 1, i * 2 + 2) = grad.at(2);
        answer.at(i * 2 + 2, i * 2 + 1) = -grad.at(2);
        answer.at(i * 2 + 2, i * 2 + 2) = grad.at(1);
    }
 
    return 1;
}
 
 
FEInterpolation *
InterfaceElem2dLin :: giveInterpolation() const
{
    return & interp;
}
 
#ifdef __OOFEG
void InterfaceElem2dLin :: drawRawGeometry(oofegGraphicContext &gc, TimeStep *tStep)
{
    GraphicObj *go;
    //  if (!go) { // create new one
    WCRec p [ 2 ]; /* poin */
    if ( !gc.testElementGraphicActivity(this) ) {
        return;
    }
 
    EASValsSetLineWidth(OOFEG_RAW_GEOMETRY_WIDTH);
    EASValsSetColor( gc.getElementColor() );
    EASValsSetLayer(OOFEG_RAW_GEOMETRY_LAYER);
    p [ 0 ].x = ( FPNum ) this->giveNode(1)->giveCoordinate(1);
    p [ 0 ].y = ( FPNum ) this->giveNode(1)->giveCoordinate(2);
    p [ 0 ].z = 0.0;
    p [ 1 ].x = ( FPNum ) this->giveNode(2)->giveCoordinate(1);
    p [ 1 ].y = ( FPNum ) this->giveNode(2)->giveCoordinate(2);
    p [ 1 ].z = 0.0;
    go = CreateLine3D(p);
    EGWithMaskChangeAttributes(WIDTH_MASK | COLOR_MASK | LAYER_MASK, go);
    EGAttachObject(go, ( EObjectP ) this);
    EMAddGraphicsToModel(ESIModel(), go);
}
 
 
void InterfaceElem2dLin :: drawDeformedGeometry(oofegGraphicContext &gc, TimeStep *tStep, UnknownType type)
{
    GraphicObj *go;
    //  if (!go) { // create new one
    WCRec p [ 2 ]; /* poin */
    if ( !gc.testElementGraphicActivity(this) ) {
        return;
    }
 
    double defScale = gc.getDefScale();
 
    EASValsSetLineWidth(OOFEG_DEFORMED_GEOMETRY_WIDTH);
    EASValsSetColor( gc.getDeformedElementColor() );
    EASValsSetLayer(OOFEG_DEFORMED_GEOMETRY_LAYER + 1);
    p [ 0 ].x = ( FPNum ) this->giveNode(1)->giveUpdatedCoordinate(1, tStep, defScale);
    p [ 0 ].y = ( FPNum ) this->giveNode(1)->giveUpdatedCoordinate(2, tStep, defScale);
    p [ 0 ].z = 0.0;
    p [ 1 ].x = ( FPNum ) this->giveNode(2)->giveUpdatedCoordinate(1, tStep, defScale);
    p [ 1 ].y = ( FPNum ) this->giveNode(2)->giveUpdatedCoordinate(2, tStep, defScale);
    p [ 1 ].z = 0.0;
    go = CreateLine3D(p);
    EGWithMaskChangeAttributes(WIDTH_MASK | COLOR_MASK | LAYER_MASK, go);
    EMAddGraphicsToModel(ESIModel(), go);
 
    p [ 0 ].x = ( FPNum ) this->giveNode(3)->giveUpdatedCoordinate(1, tStep, defScale);
    p [ 0 ].y = ( FPNum ) this->giveNode(3)->giveUpdatedCoordinate(2, tStep, defScale);
    p [ 0 ].z = 0.0;
    p [ 1 ].x = ( FPNum ) this->giveNode(4)->giveUpdatedCoordinate(1, tStep, defScale);
    p [ 1 ].y = ( FPNum ) this->giveNode(4)->giveUpdatedCoordinate(2, tStep, defScale);
    p [ 1 ].z = 0.0;
    go = CreateLine3D(p);
    EGWithMaskChangeAttributes(WIDTH_MASK | COLOR_MASK | LAYER_MASK, go);
    EMAddGraphicsToModel(ESIModel(), go);
}
 
 
void InterfaceElem2dLin :: drawScalar(oofegGraphicContext &gc, TimeStep *tStep)
{
    int indx, result = 0;
    FloatArray gcoord(3), v1;
    WCRec p [ 1 ];
    GraphicObj *go;
    double val [ 1 ];
 
    if ( !gc.testElementGraphicActivity(this) ) {
        return;
    }
 
    if ( gc.giveIntVarMode() == ISM_recovered ) {
        return;
    }
 
    for ( GaussPoint *gp: *this->giveDefaultIntegrationRulePtr() ) {
        result = 0;
        result += giveIPValue(v1, gp, gc.giveIntVarType(), tStep);
        if ( result != 1 ) {
            continue;
        }
 
        indx = gc.giveIntVarIndx();
 
        result += this->computeGlobalCoordinates( gcoord, gp->giveNaturalCoordinates() );
 
        p [ 0 ].x = ( FPNum ) gcoord.at(1);
        p [ 0 ].y = ( FPNum ) gcoord.at(2);
        p [ 0 ].z = 0.;
 
        val [ 0 ] = v1.at(indx);
        gc.updateFringeTableMinMax(val, 1);
        //if (val[0] > 0.) {
 
        EASValsSetLayer(OOFEG_VARPLOT_PATTERN_LAYER);
        EASValsSetMType(FILLED_CIRCLE_MARKER);
        go = CreateMarkerWD3D(p, val [ 0 ]);
        EGWithMaskChangeAttributes(LAYER_MASK | FILL_MASK | MTYPE_MASK, go);
        EMAddGraphicsToModel(ESIModel(), go);
        //}
    }
}
 
#endif
} // end namespace oofem