ContinuumMechanicsProblemDefinition.hpp

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*/

#ifndef CONTINUUMMECHANICSPROBLEMDEFINITION_HPP_
#define CONTINUUMMECHANICSPROBLEMDEFINITION_HPP_

#include "AbstractTetrahedralMesh.hpp"
#include "UblasCustomFunctions.hpp"
#include "AbstractIncompressibleMaterialLaw.hpp"
#include "AbstractCompressibleMaterialLaw.hpp"
#include "CompressibilityType.hpp"


typedef enum BodyForceType_
{
    CONSTANT_BODY_FORCE,
    FUNCTIONAL_BODY_FORCE
} BodyForceType;

typedef enum TractionBoundaryConditionType_
{
    NO_TRACTIONS,
    ELEMENTWISE_TRACTION,
    FUNCTIONAL_TRACTION,
    PRESSURE_ON_DEFORMED,
    FUNCTIONAL_PRESSURE_ON_DEFORMED
} TractionBoundaryConditionType;


template<unsigned DIM>
class ContinuumMechanicsProblemDefinition
{
public:
    static const double FREE; // set to DBL_MAX

protected:
    AbstractTetrahedralMesh<DIM,DIM>& mrMesh;

    double mDensity;

    // body force

    BodyForceType mBodyForceType;

    c_vector<double,DIM> mConstantBodyForce;

    c_vector<double,DIM> (*mpBodyForceFunction)(c_vector<double,DIM>& rX, double t);

    // tractions

    TractionBoundaryConditionType mTractionBoundaryConditionType;

    std::vector<BoundaryElement<DIM-1,DIM>*> mTractionBoundaryElements;

    std::vector<c_vector<double,DIM> > mElementwiseTractions;

    double mNormalPressure;

    double mOriginalNormalPressure;

    c_vector<double,DIM> (*mpTractionBoundaryConditionFunction)(c_vector<double,DIM>& rX, double t);

    double (*mpNormalPressureFunction)(double t);


    // Dirichlet boundary conditions

    std::vector<unsigned> mDirichletNodes;

    std::vector<c_vector<double,DIM> > mDirichletNodeValues;

    bool mVerboseDuringSolve;

public:
    ContinuumMechanicsProblemDefinition(AbstractTetrahedralMesh<DIM,DIM>& rMesh);

    virtual ~ContinuumMechanicsProblemDefinition()
    {
    }

    void SetDensity(double density);

    double GetDensity();

    void SetZeroDirichletNodes(std::vector<unsigned>& rZeroDirichletNodes);

    // No method here for setting non-zero Dirichlet BCs - these are in the subclasses..

    std::vector<unsigned>& rGetDirichletNodes();

    std::vector<c_vector<double,DIM> >& rGetDirichletNodeValues();


    void SetBodyForce(c_vector<double,DIM> bodyForce);

    void SetBodyForce(c_vector<double,DIM> (*pFunction)(c_vector<double,DIM>& rX, double t));

    c_vector<double,DIM> GetBodyForce(c_vector<double,DIM>& rX, double t = 0.0);

    BodyForceType GetBodyForceType();

    c_vector<double,DIM> GetConstantBodyForce();

    c_vector<double,DIM> EvaluateBodyForceFunction(c_vector<double,DIM>& rX, double t);

    TractionBoundaryConditionType GetTractionBoundaryConditionType();

    void SetTractionBoundaryConditions(std::vector<BoundaryElement<DIM-1,DIM>*>& rTractionBoundaryElements,
                                       std::vector<c_vector<double,DIM> >& rElementwiseTractions);

    void SetTractionBoundaryConditions(std::vector<BoundaryElement<DIM-1,DIM>*>& rTractionBoundaryElements,
                                       c_vector<double,DIM> (*pFunction)(c_vector<double,DIM>& rX, double t));

    void SetApplyNormalPressureOnDeformedSurface(std::vector<BoundaryElement<DIM-1,DIM>*>& rTractionBoundaryElements,
                                                 double normalPressure);



    void SetApplyNormalPressureOnDeformedSurface(std::vector<BoundaryElement<DIM-1,DIM>*>& rTractionBoundaryElements,
                                                 double (*pFunction)(double t));

    std::vector<BoundaryElement<DIM-1,DIM>*>& rGetTractionBoundaryElements();

    std::vector<c_vector<double,DIM> >& rGetElementwiseTractions();

    double GetNormalPressure();

    void SetPressureScaling(double scaleFactor);

    c_vector<double,DIM> EvaluateTractionFunction(c_vector<double,DIM>& rX, double t);

    double EvaluateNormalPressureFunction(double t);


    virtual void Validate();

    void SetVerboseDuringSolve(bool verboseDuringSolve = true)
    {
        mVerboseDuringSolve = verboseDuringSolve;
    }

    bool GetVerboseDuringSolve()
    {
        return mVerboseDuringSolve;
    }

};


#endif // CONTINUUMMECHANICSPROBLEMDEFINITION_HPP_