弹性力学问题Marc求解与边界元求解比较

Marc Elasticity Problem Solving Compared with the Boundary Element Method

用基于有限元方法的Marc软件和边界元法源程序求解弹性力学问题,推导出弹性力学问题的有限元和边界元公式,并采用二次元编写边界元法源程序。对受内压的中空活塞气缸的变形进行分析,通过比较两种方法分析的结果以及与解析解的相对误差,进而得出一些关于有限元和边界元新的结论。

Based on finite element method Marc source software and the boundary element method for solving elasticity problems, elastic mechanical problems of the finite element and boundary element formulation were derived, the boundary element method for the preparation of the second element source was used. The hollow piston cylinder deformation subjected to internal pressure of was analyzed by the results of two methods analyzing, as well as with the analytic solution of the relative error, and then draw some the new conclusion of finite element and boundary element were gaven out.