Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/53625
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Type: Journal article
Title: Out-of-plane stress and displacement for through-the-thickness cracks in plates of finite thickness
Author: Codrington, J.
Kotooussov, A.
Ho, S.
Citation: Journal of Mechanics of Materials and Structures, 2008; 3(2):261-270
Publisher: Mathematical Sciences Publishers
Issue Date: 2008
ISSN: 1559-3959
Statement of
Responsibility: 
John Codrington, Andrei Kotousov & Sook Ying Ho
Abstract: The out-of-plane stress and displacement fields are investigated analytically for mode I through-the-thickness cracks in an infinite plate of finite thickness within the first-order plate theory. The developed method is based on the distributed dislocation approach and an earlier derived three-dimensional solution for an edge dislocation. Numerical results are obtained through application of Gauss-Chebyshev quadrature for both finite length and seminfinite crack cases. The calculated stress and displacement fields are found to be in good agreement with already published experimental and finite element studies. Further results for the averaged through-the-thickness stress intensity factor are given and again found to be in good agreement with previous finite element values. The developed solutions can therefore be used in experimental techniques for the assessment of the stress intensity factor using the out-of-plane displacement measurements, for example by the interferometry method.
Keywords: distributed dislocation technique
edge dislocation
out-of-plane constraint factor
out-of-plane displacement
plate thickness effect
through-the-thickness crack
DOI: 10.2140/jomms.2008.3.261
Published version: http://pjm.math.berkeley.edu/jomms/2008/3-2/p04.xhtml
Appears in Collections:Aurora harvest
Materials Research Group publications
Mechanical Engineering publications

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