205302 Patch by Patch型混合法の破壊力学解析への適用(一般01 材料科学・材料力学4)

概要

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In this paper, we describe a method for three-dimensional high accurate analysis of a crack embeded in a large-scale structure. The Enriched Free Mesh Method (EFMM) is a method for improving the accuracy of the Free Mesh Method (FMM), which is a kind of meshless method. First, three-dimensional elasticity problem without a crack is analyzed using the EFMM and we find that its accuracy compares advantageously with the FMM, and the number of CG iterations is smaller. Next, three-dimensional structure with a crack is analyzed using the EFMM. The analysis results are agreed very well with the reference solution. It is concluded that the proposed method is very effective in the analysis of the crack embeded in a large-scale structure.
一般社団法人日本機械学会の論文
2011-03-17