領域分割法による効率的有限要素法の提案と形状最適化問題への適用

概要

論文の詳細を見る
In this paper, we propose an effective finite element method (FEM) on the basis of domain decomposition method. In the domain decomposition method, the domain of structure is decomposed into subdomains, which are connected each other with an independent interface using a penalty function method. Using this FEM, the analysis of the whole structure can be carried out by analyzing the individual subdomain. As a numerical example, the stress analysis of an aircraft structural panel repaired with bonded composite patches is made, and the efficiency and the accuracy of the FEM are verified. The FEM is also used to carry out several parametric studies to examine the effects of patch shape and size on the stress fields in the repaired structural panel and composite patches. Finally, we determine the optimum shape and size of a composite patch to endure the maximum tensile applied stress by a mathematical programming.
一般社団法人日本機械学会の論文
2002-05-25