variablecrosssection.h

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/*
 *
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 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2013   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 variablecrosssection_h
#define variablecrosssection_h

#include "../sm/CrossSections/simplecrosssection.h"
#include "../sm/CrossSections/layeredcrosssection.h"
#include "../sm/Materials/structuralmaterial.h"
#include "floatarray.h"
#include "floatmatrix.h"
#include "scalarfunction.h"


#define _IFT_VariableCrossSection_Name "variablecs"


namespace oofem {
class OOFEM_EXPORT VariableCrossSection : public SimpleCrossSection
{
protected:
    ScalarFunction thicknessExpr;
    ScalarFunction widthExpr;
    ScalarFunction areaExpr;
    ScalarFunction iyExpr;
    ScalarFunction izExpr;
    ScalarFunction ixExpr;
    ScalarFunction shearAreayExpr;
    ScalarFunction shearAreazExpr;
    ScalarFunction drillingStiffnessExpr;
    ScalarFunction relDrillingStiffnessExpr;
    ScalarFunction drillingTypeExpr;
    ScalarFunction directorxExpr;
    ScalarFunction directoryExpr;
    ScalarFunction directorzExpr;

    bool localFormulationFlag;

public:
    VariableCrossSection(int n, Domain *d) : SimpleCrossSection(n, d) {
        localFormulationFlag = false;
    }

    virtual IRResultType initializeFrom(InputRecord *ir);
    virtual void giveInputRecord(DynamicInputRecord &input);

    // identification and auxiliary functions
    virtual const char *giveClassName() const { return "VariableCrossSection"; }
    virtual const char *giveInputRecordName() const { return _IFT_VariableCrossSection_Name; }

    virtual double give(CrossSectionProperty a, GaussPoint *gp);
    virtual double give(CrossSectionProperty a, const FloatArray &coords, Element *elem, bool local);

protected:
    void giveExpression(const ScalarFunction **expr, CrossSectionProperty aProperty) const;

protected:
    std :: string giveExpression(CrossSectionProperty aProperty);
};
} // end namespace oofem
#endif // variablecrosssection_h