The Open UniversitySkip to content
 

A Novel Closed-Form Calculation of the Stress Intensity Factor for a Crack in a Residual Stress Field

Tan, Jeffrey Meng-Lee; Fitzpatrick, Michael E. and Edwards, Lyndon (2006). A Novel Closed-Form Calculation of the Stress Intensity Factor for a Crack in a Residual Stress Field. Materials Science Forum, 524-525 pp. 83–88.

URL: http://www.scientific.net/0-87849-414-6/83/
Google Scholar: Look up in Google Scholar

Abstract

Exact closed-form stress intensity factor (SIF) solutions have been developed for a mode-I through-thickness cracks in an infinite plate. Centre-crack problems have been analysed comprehensively in the literature, but the focus has been on the effect of simple loading about the crack centre. In the current work, the formula of Sih-Paris-Erdogan has been extended to consider the SIF difference on the left and right crack tips, under the local influence of general asymmetric and symmetric stress field. Exact SIF magnification factors convenient for computations have been derived that simultaneously circumvent the problem of crack-tip stress singularity. The solutions so obtained are applied to generate the residual SIFs that would act on a crack growing under the influence of the residual stress fields associated with welded plates and cold-worked holes using the measured residual stress profiles.

Item Type: Journal Item
ISSN: 0255-5476
Keywords: residual stress field; stress intensity factors; through-thickness centre crack; welded plate; cold expanded holes
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 5435
Depositing User: Michael E. Fitzpatrick
Date Deposited: 20 Sep 2006
Last Modified: 08 May 2019 13:35
URI: http://oro.open.ac.uk/id/eprint/5435
Share this page:

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU