A mesh generation technique for three dimensional crack propagation analysis using virtual crack closure-integral method (VCCM) and tetrahedral finite element

被引：0

作者：

Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima-shi, Kagoshima, 890-0065, Japan ^{[1
]}

机构：

[1] Graduate School of Science and Engineering, Kagoshima University, Kagoshima-shi, Kagoshima, 890-0065

来源：

Nihon Kikai Gakkai Ronbunshu A | 2008年 / 6卷 / 819-826期

关键词：

Crack propagation; Delaunay triangulation; Fracture mechanics; Mesh generation; Virtual crack closure-integral method;

D O I：

10.1299/kikaia.74.819

中图分类号：

学科分类号：

摘要：

Three dimensional crack propagation analysis will enable more realistic assessment of the structural integrity for aging structures such as aircrafts and power plants. Recently, as a linear-elastic fracture parameter evaluation method, VCCM (Virtual Crack Closure-Integral Method) is extended for 3-D tetrahedral element. With fully automatic generation capability of tetrahedral mesh, more realistic crack propagation of a 3-D arbitrary curved geometry can be handled efficiently. Here, we developed a new mesh generation technique for 3-D crack propagation analysis. A crack propagation analysis of an elliptical crack in a mixed mode environment, which is initially flat and is gradually growing into a curved crack in 3-D space, is also demonstrated.

引用

页码：819 / 826

页数：7

共 20 条

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