Rubber is a very unique material, proper analysis of rubber components require handling the problems of geometric nonlinearity, nonlinear boundary conditions, and material nonlinearity.
橡胶是一种特殊的材料，要实施橡胶制品的有限元分析，就要能综合处理几何非线性、材料非线性以及边界非线性问题。
Most back-calculation theories are based on the linear elastic layer system and quietude analysis method, which neglected the nonlinear peculiarity of the pavement material.
现有的反算理论大多建立在弹性层状体系和拟静力分析方法的基础之上，忽略了路面材料应力应变非线性特性。
In this paper, a finite element procedure for the nonlinear static analysis of reinforced concrete shells considering geometrical and material nonlinearities is presented.
本文采用有限元数值方法，分析计算了大型钢筋混凝土壳的几何、物理非线性静力问题。
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