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

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题名:	Finite-Element Calculation of Elastodynamic Stress Intensity Factors along a 3D Nonplanar Curved Crack
作者:	Chang,JH;Wu,DJ
贡献者:	土木工程研究所
关键词:	DOMAIN INTEGRAL METHOD;ENERGY-RELEASE RATES;FRACTURE-MECHANICS;EXTENSION FORCE;COMPUTATION;DIMENSIONS;DECOMPOSITION
日期:	2009
上传时间:	2010-06-29 17:09:39 (UTC+8)
出版者:	中央大學
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.
關聯:	JOURNAL OF ENGINEERING MECHANICS-ASCE
显示于类别:	[土木工程研究所] 期刊論文

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