intelline1.h

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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
 */
 
#ifndef intelline1_h
#define intelline1_h
 
#include "sm/Elements/Interfaces/structuralinterfaceelement.h"
#include "floatmatrixf.h"
#include "nodalaveragingrecoverymodel.h"
 
#define _IFT_IntElLine1_Name "intelline1"
#define _IFT_IntElLine1_axisymmode "axisymmode"
 
namespace oofem {
class FEI2dLineLin;
class ParamKey;

class IntElLine1 : public StructuralInterfaceElement, public NodalAveragingRecoveryModelInterface
{
protected:
    static FEI2dLineLin interp;
    bool axisymmode = false;
 
    static ParamKey IPK_IntElLine1_axisymmode;
 
public:
    IntElLine1(int n, Domain * d);
 
    FEInterpolation *giveInterpolation() const override;
 
    int computeNumberOfDofs() override { return 8; }
    void giveDofManDofIDMask(int inode, IntArray &answer) const override;
 
    double computeAreaAround(GaussPoint *gp) override;
    void computeTransformationMatrixAt(GaussPoint *gp, FloatMatrix &answer) override;
    virtual FloatArrayF<2> computeCovarBaseVectorAt(GaussPoint *gp) const;
 
    int testElementExtension(ElementExtension ext) override { return 0; }
 
    Interface *giveInterface(InterfaceType interface) override;
    void NodalAveragingRecoveryMI_computeNodalValue(FloatArray &answer, int node,
                                                    InternalStateType type, TimeStep *tStep) override;
    // definition & identification
    const char *giveInputRecordName() const override { return _IFT_IntElLine1_Name; }
    const char *giveClassName() const override { return "IntElLine1"; }
    void initializeFrom(InputRecord &ir, int priority) override;
    void postInitialize() override;
 
    void giveEngTraction(FloatArray &answer, GaussPoint *gp, const FloatArray &jump, TimeStep *tStep) override
    {
        answer = this->giveInterfaceCrossSection()->giveEngTraction_2d(jump, gp, tStep);
    }
 
    void giveStiffnessMatrix_Eng(FloatMatrix &answer, MatResponseMode rMode, IntegrationPoint *ip, TimeStep *tStep) override
    {
        answer = this->giveInterfaceCrossSection()->give2dStiffnessMatrix_Eng(rMode, ip, tStep);
    }
 
#ifdef __OOFEG
    void drawRawGeometry(oofegGraphicContext &gc, TimeStep *tStep) override;
    void drawDeformedGeometry(oofegGraphicContext &gc, TimeStep *tStep, UnknownType) override;
    void drawScalar(oofegGraphicContext &gc, TimeStep *tStep) override;
#endif
 
protected:
    void computeNmatrixAt(GaussPoint *gp, FloatMatrix &answer) override;
    void computeGaussPoints() override;
 
    Element_Geometry_Type giveGeometryType() const override { return EGT_line_1; }
};
} // end namespace oofem
#endif