Finite-Element Calculation of Elastodynamic Stress Intensity Factors along a 3D Nonplanar Curved Crack

被引：0

作者：

Chang, Jui-Hung ^{[1
]}

Wu, Deh-Juan ^{[1
]}

机构：

[1] Natl Cent Univ, Chungli 32054, Taiwan

来源：

JOURNAL OF ENGINEERING MECHANICS-ASCE | 2009年 / 135卷 / 06期

关键词：

DOMAIN INTEGRAL METHOD; ENERGY-RELEASE RATES; FRACTURE-MECHANICS; EXTENSION FORCE; COMPUTATION; DIMENSIONS; DECOMPOSITION;

D O I：

10.1061/(ASCE)0733-9399(2009)135:6(585)

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A numerical procedure is presented for calculation of the mixed-mode elastodynamic stress intensity factors for a stationary three-dimensional curved crack with nonplanar surfaces. The computational scheme is developed by modifying the concept of the elastodynamic J(k) integrals, which are shown to be surface independent in a modified sense. As the near-front region needs to be included in the calculation, special treatment is thus addressed to modeling the elastodynamic singular behavior. Neither extra auxiliary solutions nor singular finite elements are required for the computation.

引用

页码：585 / 590

页数：6

共 20 条

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