橡胶有限元分析之研究

The Study of Finite Element Solution for the Rubber

本文研究了橡胶材料有限元应力分析的两种途径；罚有限单元法及混合插值有限单元法。分别将罚函数及静水压力引入材料应变能密度函数，对橡胶类不可压缩超弹性材料进行了有限元分析；数值结果和解析解符合得较好，表明了算法的有效性。

In this paper studies are done on stress analysis of rubber material using two different FEA methods:penalty FEA and mixed interpolation FEA. Via introduction of penalty function and hydropressure into the matreial strain energy density function respectively, the rubber-like imcompressible hyperelastic material is analysed by FEA. Excellent numerical results are obtained, which shows the effectiveness of the method proposed.