The University of Southampton
University of Southampton Institutional Repository

Methodologies for predicting J-integrals under large plastic deformation—I. Further developments for tension loading

Lau, C.L., Lee, M.M.K. and Luxmoore, A.R. (1994) Methodologies for predicting J-integrals under large plastic deformation—I. Further developments for tension loading Engineering Fracture Mechanics, 49, (3), pp. 337-354. (doi:10.1016/0013-7944(94)90263-1).

Record type: Article

Abstract

Based on the results of a parametric finite element study on single edge notch specimens with shallow crack geometries (0.05 less-than-or-equals, slant a/W less-than-or-equals, slant 0.1) under large plastic deformation, a revised J-estimation method is presented. The revised scheme focused on material laws which can be approximated by a power law representation. The scheme uses the format of an existing method which adopts Turner's EnJ tripartite approach of J-estimation: Linear Elastic Fracture Mechanics, Net Section Yield and Gross Section Yield. The form of the J vs strain relationship in the gross section yield region was derived from a consideration of the HRR strain field equation, the EPRI plastic J equation and the definition of J in terms of the energy release rate. Comparison with finite element results shows that the revised scheme generally provides safe predictions of the crack driving parameter. For low to medium work hardening materials (power law exponent n greater-or-equal, slanted 5), the accuracy of prediction is within about 5%. The scheme has also been shown to be equally applicable to centre cracked panels with short cracks

Full text not available from this repository.

More information

Published date: October 1994

Identifiers

Local EPrints ID: 75355
URI: http://eprints.soton.ac.uk/id/eprint/75355
ISSN: 0013-7944
PURE UUID: 2dfc4f3e-f8da-428d-8e40-3a074650128d

Catalogue record

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

Export record

Altmetrics

Contributors

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

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×