Effect of modelling of traction and thermal singularities on accuracy of SIFS computation through modified crack closure integral in BEM

Mukhopadhyay, N. K. ; Maiti, S. K. ; Kakodkar, Anil (1999) Effect of modelling of traction and thermal singularities on accuracy of SIFS computation through modified crack closure integral in BEM Engineering Fracture Mechanics, 64 (2). pp. 141-159. ISSN 0013-7944

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00137...

Related URL: http://dx.doi.org/10.1016/S0013-7944(99)00069-7

Abstract

The effect of simultaneous modelling of both strain and traction singularities, and temperature derivative and heat flux singularities at the crack tip, on the accuracy of computation of stress intensity factors (SIFs) based on the modified crack closure integral in boundary element method is presented. Simple relations are given for SIF calculations. Results on mode I, mode II and mixed mode, crack subjected to mechanical and/or thermal loading are studied to illustrate the difference between partial and total modelling of the singularities. The dependence of accuracy of the SIFs on the crack tip element size is examined. The effect of order of Gaussian quadrature on the accuracy is also reported.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Traction Singularity; Heat Flux Singularity; Mechanical Loading on Crack; Thermal Loading on Crack; Modified Crack Closure Integral; Stress Intensity Factor; Boundary Element Method; Gaussian Quadrature; Accuracy of SIF Computation
ID Code:15818
Deposited On:13 Nov 2010 12:29
Last Modified:20 Feb 2011 15:32

Repository Staff Only: item control page