The University of Southampton
University of Southampton Institutional Repository

Stress intensity factor solutions for semi-elliptical weld-toe cracks in T-butt geometries

Bowness, D. and Lee, M.M.K. (1996) Stress intensity factor solutions for semi-elliptical weld-toe cracks in T-butt geometries Fatigue and Fracture of Engineering Materials and Structures, 19, (6), pp. 787-797. (doi:10.1111/j.1460-2695.1996.tb01323.x).

Record type: Article

Abstract

Weld toe magnification factors are widely used in the evaluation of stress intensity factors for cracks in welded structures. Traditionally, the weld magnification factor has been determined from 2-D plane strain models containing edge cracks. However, it has long been recognised that a semi-elliptical weld toe crack cannot be accurately represented by a 2-D approximation due to the 3-D nature of the geometry. As a consequence, some recent research has been carried out using 3-D numerical modelling, which highlights the limitations of the 2-D approach. Nevertheless, 3-D solutions are still scarce and are of limited validity due to the difficulties associated with creating the numerical models. This paper reports the most extensive 3-D numerical investigation of semi-elliptical cracks in T-butt geometries to date. Based on the numerical results, new and accurate equations for weld magnification factors were derived, which quantify the 3-D effects present and emphasise the importance of the attachment. The results obtained from these equations are then used in an assessment of existing solutions.

Full text not available from this repository.

More information

Published date: June 1996
Keywords: stress intensity factors, weld toe cracks, finite elements, t-butts, fatigue assessment

Identifiers

Local EPrints ID: 75372
URI: http://eprints.soton.ac.uk/id/eprint/75372
ISSN: 8756-758X
PURE UUID: 28d8aa59-28a7-447b-8374-3d553141a2c6

Catalogue record

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

Export record

Altmetrics

Contributors

Author: D. Bowness
Author: M.M.K. Lee

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.

×