q4axisymm.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 "sm/Elements/Axisymmetry/q4axisymm.h"
#include "fei2dquadquad.h"
#include "node.h"
#include "gausspoint.h"
#include "gaussintegrationrule.h"
#include "floatmatrix.h"
#include "floatarray.h"
#include "intarray.h"
#include "domain.h"
#include "engngm.h"
#include "mathfem.h"
#include "crosssection.h"
#include "classfactory.h"
#include "parametermanager.h"
#include "paramkey.h"
 
#ifdef __OOFEG
 #include "oofeggraphiccontext.h"
 #include "connectivitytable.h"
#endif
 
namespace oofem {
REGISTER_Element(Q4Axisymm);
ParamKey Q4Axisymm::IPK_Q4Axisymm_nipfish("nipfish");
 
FEI2dQuadQuadAxi Q4Axisymm :: interp(1, 2);
 
Q4Axisymm :: Q4Axisymm(int n, Domain *aDomain) :
    AxisymElement(n, aDomain), ZZNodalRecoveryModelInterface(this)
{
    numberOfDofMans = 8;
    numberOfGaussPoints = 4;
    numberOfFiAndShGaussPoints = 1;
}
 
 
Q4Axisymm :: ~Q4Axisymm()
{ }
 
 
FEInterpolation *
Q4Axisymm :: giveInterpolation() const
{
    return & interp;
}
 
 
 
void
Q4Axisymm :: initializeFrom(InputRecord &ir, int priority)
    // Initialize the receiver from the input record ir.
    // The priority is used to resolve conflicts in the input record
    // (e.g. when two elements are defined in the same input record).
    // The higher the priority, the more important the field is.
    // The default value of priority is 0.
{
    ParameterManager &ppm = domain->elementPPM;
    StructuralElement :: initializeFrom(ir, priority);
    PM_UPDATE_PARAMETER(numberOfFiAndShGaussPoints, ppm, ir, this->number, IPK_Q4Axisymm_nipfish, priority) ;
}
 
 
void
Q4Axisymm :: computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int li, int ui)
{
    // Returns the [ 6 x (nno*2) ] strain-displacement matrix {B} of the receiver,
    // evaluated at gp. Uses reduced integration
    // (epsilon_x,epsilon_y,...,Gamma_xy) = B . r
    // r = ( u1,v1,u2,v2,u3,v3,u4,v4)
 
    if ( numberOfFiAndShGaussPoints == 1 ) { // Reduced integration
        FEInterpolation *interp = this->giveInterpolation();
        
        FloatArray N, NRed, redCoord = {0.0, 0.0}; // eval in centroid
        interp->evalN( N, gp->giveNaturalCoordinates(), FEIElementGeometryWrapper(this) );
        interp->evalN( NRed, redCoord, FEIElementGeometryWrapper(this) );
        
        // Evaluate radius at center
        double r = 0.0;
        for ( int i = 1; i <= this->giveNumberOfDofManagers(); i++ ) {
            double x = this->giveNode(i)->giveCoordinate(1);
            r += x * NRed.at(i);
        } 
        
        FloatMatrix dNdx, dNdxRed;
        interp->evaldNdx( dNdx, gp->giveNaturalCoordinates(), FEIElementGeometryWrapper(this) );
        interp->evaldNdx( dNdxRed, redCoord, FEIElementGeometryWrapper(this) );
        answer.resize(6, dNdx.giveNumberOfRows() * 2);
        answer.zero();
 
        for ( int i = 1; i <= dNdx.giveNumberOfRows(); i++ ) {
            answer.at(1, i * 2 - 1) = dNdx.at(i, 1);
            answer.at(2, i * 2 - 0) = dNdx.at(i, 2);
            answer.at(3, i * 2 - 1) = NRed.at(i) / r;
            answer.at(6, 2 * i - 1) = dNdxRed.at(i, 2);
            answer.at(6, 2 * i - 0) = dNdxRed.at(i, 1);
        }
    }
}
 
 
 
 
 
Interface *
Q4Axisymm :: giveInterface(InterfaceType interface)
{
    if ( interface == ZZNodalRecoveryModelInterfaceType ) {
        return static_cast< ZZNodalRecoveryModelInterface * >(this);
    }
 
    return NULL;
}
 
 
#ifdef __OOFEG
 
void Q4Axisymm :: drawRawGeometry(oofegGraphicContext &gc, TimeStep *tStep)
{
    WCRec p [ 4 ];
    GraphicObj *go;
 
    if ( !gc.testElementGraphicActivity(this) ) {
        return;
    }
 
    EASValsSetLineWidth(OOFEG_RAW_GEOMETRY_WIDTH);
    EASValsSetColor( gc.getElementColor() );
    EASValsSetEdgeColor( gc.getElementEdgeColor() );
    EASValsSetEdgeFlag(true);
 
    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.;
    p [ 1 ].x = ( FPNum ) this->giveNode(2)->giveCoordinate(1);
    p [ 1 ].y = ( FPNum ) this->giveNode(2)->giveCoordinate(2);
    p [ 1 ].z = 0.;
    p [ 2 ].x = ( FPNum ) this->giveNode(3)->giveCoordinate(1);
    p [ 2 ].y = ( FPNum ) this->giveNode(3)->giveCoordinate(2);
    p [ 2 ].z = 0.;
    p [ 3 ].x = ( FPNum ) this->giveNode(4)->giveCoordinate(1);
    p [ 3 ].y = ( FPNum ) this->giveNode(4)->giveCoordinate(2);
    p [ 3 ].z = 0.;
 
    go =  CreateQuad3D(p);
    EGWithMaskChangeAttributes(WIDTH_MASK | COLOR_MASK | EDGE_COLOR_MASK | EDGE_FLAG_MASK | LAYER_MASK, go);
    EGAttachObject(go, ( EObjectP ) this);
    EMAddGraphicsToModel(ESIModel(), go);
}
 
 
void Q4Axisymm :: drawDeformedGeometry(oofegGraphicContext &gc, TimeStep *tStep, UnknownType type)
{
    WCRec p [ 4 ];
    GraphicObj *go;
    double defScale = gc.getDefScale();
 
    if ( !gc.testElementGraphicActivity(this) ) {
        return;
    }
 
    EASValsSetLineWidth(OOFEG_DEFORMED_GEOMETRY_WIDTH);
    EASValsSetColor( gc.getDeformedElementColor() );
    EASValsSetEdgeColor( gc.getElementEdgeColor() );
    EASValsSetEdgeFlag(true);
    EASValsSetLayer(OOFEG_DEFORMED_GEOMETRY_LAYER);
    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.;
    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.;
    p [ 2 ].x = ( FPNum ) this->giveNode(3)->giveUpdatedCoordinate(1, tStep, defScale);
    p [ 2 ].y = ( FPNum ) this->giveNode(3)->giveUpdatedCoordinate(2, tStep, defScale);
    p [ 2 ].z = 0.;
    p [ 3 ].x = ( FPNum ) this->giveNode(4)->giveUpdatedCoordinate(1, tStep, defScale);
    p [ 3 ].y = ( FPNum ) this->giveNode(4)->giveUpdatedCoordinate(2, tStep, defScale);
    p [ 3 ].z = 0.;
 
    go =  CreateQuad3D(p);
    EGWithMaskChangeAttributes(WIDTH_MASK | COLOR_MASK | EDGE_COLOR_MASK | EDGE_FLAG_MASK | LAYER_MASK, go);
    EMAddGraphicsToModel(ESIModel(), go);
}
 
#endif
} // end namespace oofem