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Investigation of roughness induced crack closure effects in fatigue

Parry, M.R., Syngellakis, S. and Sinclair, I. (2000) Investigation of roughness induced crack closure effects in fatigue In, Selvadurai, A.P.S. and Brebbia, C.A. (eds.) Damage and Fracture Mechanics VI: Computer Aided Assessment and Control. Southampton, UK, Wessex Institute of Technology pp. 313-322. (Engineering Sciences, 26). (doi:10.2495/DM000291).

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The incidence of roughness induced fatigue crack closure has been studied by finite element modelling.
Results show an increasing effect of crack path angle on closure levels with the closure mechanism being strongly dependent on residual plastic strains in the wake rather than global shear displacements of the fracture surfaces.
An analytical expression for the functional dependence of roughness induced closure has been produced which shows reasonable agreement with the finite element results.

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Published date: 2000


Local EPrints ID: 21406
ISBN: 1853128120
PURE UUID: 0a3872b3-54be-40ce-9497-8af5eb222e89

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Date deposited: 23 Feb 2007
Last modified: 17 Jul 2017 16:26

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Author: M.R. Parry
Author: S. Syngellakis
Author: I. Sinclair
Editor: A.P.S. Selvadurai
Editor: C.A. Brebbia

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