Newtonian.h

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// SPDX-License-Identifier: MIT
// Copyright (c) 2021-2025 MPM-Geomechanics Development Team
 
#ifndef NEWTONIAN_H_
#define NEWTONIAN_H_
 
#include "Materials/Material.h"
#include "Particle/Particle.h"
 
class Newtonian: public Material {
 
public:
 
    Newtonian(int id, double density, double viscosity, double bulk);
    
    virtual ~Newtonian();
    
    inline void setViscosity(double viscosity) { this->Viscosity = viscosity; }
    
    inline void setBulk(double bulk) { this->Bulk = bulk; }
 
    virtual void updateStress(Particle* particle) const override;
 
    inline virtual Material::MaterialType getType() const { return Material::getType(); }
 
    virtual double getSoundSpeed() const override;
 
protected:
    double Viscosity; 
    double Bulk;      
};
 
inline Newtonian::Newtonian(int id, double density, double viscosity, double bulk)
: Material(id, density, Material::MaterialType::NEWTONIAN)
{
    this->Viscosity = viscosity;
    this->Bulk = bulk;
}
 
inline Newtonian::~Newtonian() { }
 
#endif /* NEWTONIAN_H_ */