杂交应力元增量分析非线性橡胶类材料

本文基于增量Reissner变分原理,对不可压缩的Mooney型橡胶类材料,进行了非线性的有限元分析,给出了杂交应力元的计算列式.列式中考虑了不平衡力和不可压缩性偏差的修正项.算例计算与精确解符合得很好.

Incremental Analysis for Nonlinear Rubber-Like Materials by Hybrid Stress Finite Element

In this paper, on the basis of the incremental Reissner variational principle.a nonlinear finite element analysis has been accomplished and a formulation of hybrid stress element has been presented for incompressible Mooney rubber-like materials. The corrected terms of the non-equilibrium force and the incompressibility deviation are considered in the formulation. The computed values of numerical example agree very closely with the exact solution.