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J-integral solutions for shallow crack geometries under combined tension and bending

Lau, C.L., Lee, M.M.K. and Luxmoore, A.R. (1996) J-integral solutions for shallow crack geometries under combined tension and bending Fatigue and Fracture of Engineering Materials and Structures, 19, (5), pp. 611-622. (doi:10.1111/j.1460-2695.1996.tb00997.x).

Record type: Article


This paper presents J-integral solutions for geometries with shallow edge cracks (0.05 ?a/W? 0.1) subjected to combined tension and bending. Tension and bending is applied simultaneously and sequentially. Curves of J versus structural strain are obtained from two-dimensional plane strain finite element analyses using medium to low work hardening power laws to represent material behaviour. Empirical equations are derived from the finite element results to estimate the J-integrals, using previously developed J-estimation schemes for SENT and SENB specimens with only minor modifications. The predictions presented are invariably safe, but due to the complexity of the problems studied and the variability of the loadings considered, the degree of conservatism is found to be high in some cases.

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Published date: May 1996
Keywords: shallow cracks, j integrals, fe solutions, combined tension/bending


Local EPrints ID: 75371
ISSN: 8756-758X
PURE UUID: 4a4d0313-16c2-427c-9bf9-04208367b4af

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:43

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Author: C.L. Lau
Author: M.M.K. Lee
Author: A.R. Luxmoore

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