SchmidCostaExponentialLaw2d.hpp

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*/


#ifndef SCHMIDCOSTAEXPONENTIALLAW2D_HPP_
#define SCHMIDCOSTAEXPONENTIALLAW2D_HPP_

#include "AbstractIncompressibleMaterialLaw.hpp"

class SchmidCostaExponentialLaw2d : public AbstractIncompressibleMaterialLaw<2>
{
private:

    double mA;

    std::vector<std::vector<double> > mB;

    c_matrix<double,2,2> mIdentity;

public:

    SchmidCostaExponentialLaw2d();

    void ComputeStressAndStressDerivative(c_matrix<double,2,2>&  rC,
                                          c_matrix<double,2,2>&  rInvC,
                                          double                 pressure,
                                          c_matrix<double,2,2>&  rT,
                                          FourthOrderTensor<2,2,2,2>&  rDTdE,
                                          bool                   computeDTdE);

    double GetA();

    std::vector<std::vector<double> > GetB();

    double GetZeroStrainPressure();
};

#endif /* SCHMIDCOSTAEXPONENTIALLAW2D_HPP_*/