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主要针对有限元网格重合法的基本原理进行分析、推导了整体到局部区域里的有限元重合网格法的数学模型,以戴圆孔板的应力集中问题为例进行探讨了有限元重合网格法的计算精度和应用价值并与一般的有限元法进行了对比分析.结果表明,有限元重合网格法对工程中的多尺度分析问题有一定的应用价值.
This paper mainly analyzes the basic principle of finite element mesh coincidence method and deduces the mathematical model of the finite element coincidence grid method which is integrated into the local area. Taking the stress concentration problem of circular hole plate as an example, The calculation precision and the application value of the grid method are compared with those of the general finite element method. The results show that the finite element method coincides with the grid method has certain application value in the multi-scale analysis of the project.