Uni-axial stress-strain response and thermal conductivity degradation of ceramic matrix composite fibre tows

Tang, C., Blacklock, Matthew and Hayhurst, David (2009) Uni-axial stress-strain response and thermal conductivity degradation of ceramic matrix composite fibre tows. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 465 (2109). pp. 2849-2876. ISSN 1364-5021

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Abstract

A physical model, previously developed by one of the authors, has been extended to cover thermal conductivity degradation owing to the uni-axial stress-strain response of aligned groups of fibres or tows found in ceramic matrix composites. Both the stress-strain and thermal models, together with their coupling, have been shown to predict known composite behaviour qualitatively. The degradation of longitudinal thermal properties is shown to be driven by strain-controlled fibre failure; while the degradation of transverse thermal properties is because of the growth of fibre-matrix interface wake-debonded cracks, coupled with strain-driven fibre failure.

Item Type:	Article
Uncontrolled Keywords:	Ceramic matrix composites, Fibre pullout, Longitudinal and transverse thermal conductivity, Stress-strain response, Tows, Wake debonding
Subjects:	H300 Mechanical Engineering
Department:	Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User:	Paul Burns
Date Deposited:	13 Jul 2018 16:14
Last Modified:	11 Oct 2019 20:00
URI:	http://nrl.northumbria.ac.uk/id/eprint/34995

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