37#ifndef EXPONENTIALMATERIALLAW_HPP_
38#define EXPONENTIALMATERIALLAW_HPP_
40#include "AbstractIsotropicIncompressibleMaterialLaw.hpp"
double Get_d2W_dI1(double I1, double I2)
double Get_dW_dI2(double I1, double I2)
double Get_dW_dI1(double I1, double I2)
double Get_d2W_dI1I2(double I1, double I2)
double Get_d2W_dI2(double I1, double I2)