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Prediction of failure envelopes and stress strain curves of fiber composite laminates under triaxial loads: comparison with experimental results

Zhang, Daxu and Xu, Lihua and Ye, Jianqiao (2013) Prediction of failure envelopes and stress strain curves of fiber composite laminates under triaxial loads: comparison with experimental results. Journal of Composite Materials, 47 (6-7). pp. 763-776.

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Abstract

This paper represents the authors’ contribution to Part B of the Second World Wide Failure Exercise (WWFE-II), in which the failure predictions and stress strain curves of twelve test cases are compared with experimental data. The paper briefly reviews the methodology presented in WWFE-II Part A, which includes a semi-analytical stress analysis model and Christensen (2007, 2008)’s failure criteria. A further development in this paper is to introduce a new failure criterion developed also by Christensen (2009) and the application of the criterion in conjunction with the stress model. These failure criteria have no adjustable parameters and only depend upon a minimal number of measurable failure properties. Comparisons between the theoretical predictions using different criteria and the experimental results provided by the WWFE-II organizers are shown in diagrams. It appears that Christensen (2008)’s failure criteria predict the failure strength satisfactorily in most of the test cases. Christensen (2009)’s Polynomial Invariants theory compares also well with the experimental results. However, the layup-dependent strength properties required in the criterion are sometimes very difficult to evaluate without performing experimental tests.

Item Type: Article
Journal or Publication Title: Journal of Composite Materials
Uncontrolled Keywords: Composite laminates ; failure criterion ; laminate strength ; stress–strain behaviour
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 59365
Deposited By: ep_importer_pure
Deposited On: 22 Oct 2012 09:19
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 05:33
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/59365

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