Material.hpp

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//==============================================================================
//
//                       Seismo Virtual Laboratory
//             Module for Serial and Parallel Analysis of seismic 
//         wave propagation and soil-structure interaction simulation
//         Copyright (C) 2018-2021, The California Institute of Technology
//                         All Rights Reserved.
//
// Commercial use of this program without express permission of the California
// Institute of Technology, is strictly  prohibited. See  file "COPYRIGHT"  in
// main  directory  for  information on  usage  and  redistribution, and for a
// DISCLAIMER OF ALL WARRANTIES.
//
//==============================================================================
//
// Written by:
//   Danilo S. Kusanovic (dkusanov@caltech.edu)
//   Elnaz E. Seylabi    (elnaze@unr.edu)
//
// Supervised by:
//   Domniki M. Asimaki  (domniki@caltech.edu)
//
// References : 
//   [1]
//
// Description:
//------------------------------------------------------------------------------

#ifndef _MATERIAL_HPP_
#define _MATERIAL_HPP_

#include <string>
#include <memory>
#include <Eigen/Dense>

class Material{

    public:
        Material(std::string name, bool model);

        virtual ~Material() = 0;

        virtual std::unique_ptr<Material> CopyMaterial() = 0;

        virtual double GetDensity() const = 0;

        virtual double GetPoissonRatio() const = 0;

        virtual double GetBulkModulus() const = 0;

        virtual double GetShearModulus() const = 0;

        virtual double GetElasticityModulus() const = 0;

        virtual double GetEnergy() const = 0;

        virtual Eigen::MatrixXd GetDamping() const = 0;

        virtual Eigen::VectorXd GetStrain() const = 0;

        virtual Eigen::VectorXd GetStress() const = 0;

        virtual Eigen::VectorXd GetStrainRate() const = 0;

        virtual Eigen::VectorXd GetTotalStress() const = 0;

        virtual Eigen::MatrixXd GetTangentStiffness() const = 0;

        virtual Eigen::MatrixXd GetInitialTangentStiffness() const = 0;

        virtual void CommitState() = 0;

        virtual void ReverseState() = 0;

        virtual void InitialState() = 0;

        virtual void UpdateState(const Eigen::VectorXd strain, const unsigned int cond=0) = 0;

        std::string GetName();

        bool IsViscous();

    private:
        std::string Name;

        bool isViscous;
};

#endif