811 境界要素法における内点応力の一表示法(オーガナイズドセッション : 計算力学と構造設計)

概要

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Recently, the numerical methods such as boundary element method (BEM) and finite element method (FEM) are used in various fields of the engineering. The contour line representation of the results obtained by those numerical methods is one of the fundamental problem. When a plane elastostatic problem was analyzed by the BEM, information on internal stresses or displacements is only coordinate and magnitude of the value. Therefore, in the BEM analysis, an additional geometrical data is necessary to draw the contour lines. This paper deals with the contour line drawing in the BEM analysis using the Takazawa's method. which can generate triangular meshes automatically inside the domain from the boundary nodal data only. Using the contour lines, contour maps of von Mises stress are also formed. Several examples are shown to demonstrate the effectiveness of the proposed method.
一般社団法人日本機械学会の論文
2001-09-20