Failure analysis of fiber-reinforced composites subjected to coupled thermo-mechanical loading

Ye, Junjie and Wang, Y. and Li, Z. and Saafi, M. and Jia, F. and Huang, B. and Ye, J. (2020) Failure analysis of fiber-reinforced composites subjected to coupled thermo-mechanical loading. Composite Structures, 235. ISSN 0263-8223

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Structures made of fiber reinforced composites have captured extensive attentions in the scientific and en-gineering communities due to their excellent performance and applicability. When these structures are in ser-vice, they are likely exposed to variations of ambient temperature that may have an impact on their strength. To study this effect, a coupled thermo-mechanical model is required. This paper develops a microscopic mechanical model to investigate failure of composite structures subjected to a coupled thermo-mechanical condition. Stiffness degradations of composite laminates are first investigated. A comparison between experimental data and theoretical results under the quasi-static loadings are presented to validate the proposed method. The method provides detailed microscopic stress distribution of the composites under the coupled thermo-me-chanical loading for failure analysis, which shows that a higher ambient temperature variation will generally cause stiffness degradation and failure strength for both uniaxially and biaxially loaded laminates.

Item Type:
Journal Article
Journal or Publication Title:
Composite Structures
Additional Information:
This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 235, 2020 DOI: 10.1016/j.compstruct.2019.111756
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Deposited On:
07 Jan 2020 13:55
Last Modified:
22 Nov 2022 08:34