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Fourier basis for the engineering assessment of cracks in residual stress fields

Bouchard, P. John (2012). Fourier basis for the engineering assessment of cracks in residual stress fields. Engineering Fracture Mechanics, 91 pp. 37–50.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.engfracmech.2012.05.004
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Abstract

A theoretical basis is presented for determining the significance of a residual stress distribution of arbitrary shape on the crack tip stress intensity factor for a centre-cracked plate as a function of crack length. The Fourier series based approach enables one to increasingly add more spatial definition to the stress field and thereby determine the level of detailed knowledge of the residual stress required to make a reliable assessment of structural integrity. The approach is applied to examples of measured symmetric distributions of residual stresses in welded plates and used to determine the significance of residual stress lengthscales in fracture mechanics analysis.

Item Type: Journal Item
Copyright Holders: 2012 Elsevier Ltd.
ISSN: 0013-7944
Keywords: membrane; bending; self-equilibrated stress; stress intensity factor; structural assessment
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
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Item ID: 33992
Depositing User: Anne Green
Date Deposited: 11 Jul 2012 09:01
Last Modified: 09 Aug 2017 19:37
URI: http://oro.open.ac.uk/id/eprint/33992
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