Investigating the Interaction Behavior Between Two Arbitrarily Oriented Surface Cracks Using Multilevel Substructuring

[+] Author and Article Information
Walied A. Moussa

Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada, T6G 2G8e-mail: Walied.Moussa@ualberta.ca

J. Pressure Vessel Technol 124(4), 440-445 (Nov 08, 2002) (6 pages) doi:10.1115/1.1465439 History: Received August 03, 2000; Revised December 18, 2001; Online November 08, 2002
Copyright © 2002 by ASME
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Grahic Jump Location
Two arbitrarily oriented semi-elliptical surface cracks in an infinite plate with a finite thickness—(a) two arbitrary semi-elliptic surface crack; (b) section view of the semi-elliptic surface crack; (c) crack Q or P submodel (272) elements; (d) the volume zone used to evaluate the J-integral around the crack front in 3-D
Grahic Jump Location
The finite element model of two arbitrarily oriented interacting surface cracks in an infinite plate—(a) global interaction zone Ω; (b) arbitrary cracks configurations
Grahic Jump Location
Comparison of present SIF and γQ values with literature solutions—(a) percentage deviation between present FE solution and Newman and Raju 15; (b) variations of γQ with h/2cQ ratio
Grahic Jump Location
Variations of γQ with θs for different values of the relative horizontal separation distance s/cQ at ϕQ=180 deg (inner point) under tension—(a) h/2cQ=0.3; (b) h/2cQ=0.5
Grahic Jump Location
Variations of γQ with θs for different values of the relative horizontal separation distance s/cQ at ϕQ=90 deg (deepest point) under tension—(a) h/2cQ=0.3; (b) h/2cQ=0.5
Grahic Jump Location
Variations of γQ with θs for different values of the relative horizontal separation distance s/cQ at ϕQ=0 deg (outer point) under tension—(a) h/2cQ=0.3; (b) h/2cQ=0.5



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