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Cyclic J integral using linear matching method

Chen, Weihang and Chen, Haofeng (2012) Cyclic J integral using linear matching method. In: 13th International Conference on Pressure Vessel Technology, 2012-05-20 - 2012-05-23, London.

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Abstract

The extended version of the latest Linear Matching Method (LMM) has the capability to evaluate the stable cyclic response, which produces cyclic stresses, residual stresses and plastic strain ranges for the low cycle fatigue assessment with cyclic load history. The objective of this study is to calculate ΔJ through the LMM and suggest future development directions. The derivation of the ΔJ based on the potential energy expression for a single edge cracked plate subjected to cyclic uniaxial loading condition using LMM is presented. To extend the analysis so that it can be incorporated to other plasticity models, material Ramberg-Osgood hardening constants are also adopted. The results of the proposed model have been compared to the ones obtained from Reference Stress Method (RSM) for a single edge cracked plate and they indicate that the estimates provide a relatively easy method for estimating ΔJ for describing the crack growth rate behaviour by considering the complete accumulated cycle effects.

Item type: Conference or Workshop Item (Paper)
ID code: 39317
Keywords: Cyclic J Integral, linear matching method, single edge cracked plate, Mechanical engineering and machinery, Mechanical Engineering, Mechanics of Materials, Computational Mechanics, Metals and Alloys
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Pure Administrator
Date Deposited: 23 Apr 2012 15:09
Last modified: 15 Apr 2015 08:51
Related URLs:
URI: http://strathprints.strath.ac.uk/id/eprint/39317

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