Elastic and Elastic-Plastic Behaviour of a Crack in a Residual Stress Field

Elastic and Elastic-Plastic Behaviour of a Crack in a Residual Stress Field

G. Wua, C. Airdb, D. Smith, M. Pavierc

Abstract. The behaviour of a crack in the centre of a plate subject to a far-field stress has been studied where the plate contains an initial residual stress. Elastic and elastic-plastic conditions have been considered. For elastic conditions a series of analyses based on stress intensity factor solutions have been developed to calculate the state of opening and the stress intensity factor for cracks of different lengths relative to the size of the residual stress field and different magnitudes of applied stress relative to the magnitude of the residual stress. For elastic-plastic conditions a strip yield model has been used to develop a similar set of analyses. The results of these analyses compare closely with those of finite element modelling.

Keywords
Fracture Mechanics, Residual Stress, Finite Element Analysis, Strip Yield Model, Plasticity

Published online 12/22/2016, 6 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: G. Wua, C. Airdb, D. Smith, M. Pavierc, ‘Elastic and Elastic-Plastic Behaviour of a Crack in a Residual Stress Field’, Materials Research Proceedings, Vol. 2, pp 199-204, 2017

DOI: http://dx.doi.org/10.21741/9781945291173-34

The article was published as article 34 of the book Residual Stresses 2016

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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