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

NCUIR > Engineering College > Graduate Institute of Civil Engineering > journal & Dissertation > Item 987654321/26271

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26271

Title:	Finite-Element Calculation of Elastodynamic Stress Intensity Factors along a 3D Nonplanar Curved Crack
Authors:	Chang,JH;Wu,DJ
Contributors:	土木工程研究所
Keywords:	DOMAIN INTEGRAL METHOD;ENERGY-RELEASE RATES;FRACTURE-MECHANICS;EXTENSION FORCE;COMPUTATION;DIMENSIONS;DECOMPOSITION
Date:	2009
Issue Date:	2010-06-29 17:09:39 (UTC+8)
Publisher:	中央大學
Abstract:	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.
Relation:	JOURNAL OF ENGINEERING MECHANICS-ASCE
Appears in Collections:	[Graduate Institute of Civil Engineering] journal & Dissertation

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