三次元静弾性問題における応力拡大係数の境界要素解析についての一考察

概要

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In recent years the boundary element methods (BEM) have been widely applied to the computation of stress intensity factors in elastostatics. Several methods are available at present for an efficient computation of K-values from boundary element calculations. One of the most attractive methods seems to be the approach using crack elements near the crack front. This paper is concerned with the crack element approach, and a new type of crack element is proposed. The proposed crack element can simulate in a more reasonable manner the behavior of displacements and tractions or stresses near the crack front. Several sample problems are computed by use of the proposed crack element as well as the other ones available in the literature, whereby the usefulness of the proposed method is demonstrated.
一般社団法人日本機械学会の論文
1986-08-25