Numerical evaluation of J(2)-integral for rubbery materials under dynamic loads with finite element method

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Title:	Numerical evaluation of J(2)-integral for rubbery materials under dynamic loads with finite element method
Authors:	Chang,JH;Gao,YT
Contributors:	土木工程研究所
Keywords:	N/A
Date:	1997
Issue Date:	2010-06-29 17:10:40 (UTC+8)
Publisher:	中央大學
Abstract:	The J(2)-integral for rubbery material problems with a stationary crack under dynamic large deformation is calculated with finite element solutions. General 2-D problems, including plane stress, plane strain, and axisymmetric cases, are considered in the formulation. The numerical procedure is verified to be path-independent in a generalized sense, and the near-tip region is hence always included in the calculation. A numerical treatment for simulation of the integration around the near-tip area is therefore proposed. It is demonstrated numerically that, with this treatment, the calculation is very insensitive to the crack tip finite element grid. In fact, no detailed information on the complicated asymptotic dynamic singular behavior for rubbery materials is required in the calculation.
Relation:	COMPUTATIONAL MECHANICS
Appears in Collections:	[Graduate Institute of Civil Engineering] journal & Dissertation

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