【摘要】 为进行多孔硅橡胶材料非线性有限元计算 ,针对用伸长比表示的应变能函数 ,推导了多孔硅橡胶材料非线性有限元计算中切线本构关系的具体形式。并采用便于编程的矩阵记法 ,给出了非线性有限元计算中克希荷夫应力和格林应变之间的切线关系式更多还原

【Abstract】 The tangential constitutive matrix is derived in the paper for the nonlinear finite element computation of porous silicone rubber material as the strain-energy function is expressed by extension ratios .The Green strain increment -second piola kirchhoff stress increment transformation matrix is obtained by using matrix notation.更多还原