Tension modelling and testing of sandwich composites in fire

Anjang, A. and Chevali, V. S. and Kandare, E. and Mouritz, A. P. and Feih, S. (2014) Tension modelling and testing of sandwich composites in fire. Composite Structures, 113. pp. 437-445. ISSN 0263-8223

Abstract

A thermal–mechanical model is presented for calculating softening and failure of flammable sandwich composites under combined tension loading and one-sided unsteady-state heating by fire. The thermal model calculates the temperature rise of the sandwich composite when exposed to fire. The mechanical model computes the reduction to the tensile modulus and strength of the laminate face skins caused by thermal softening of the fibre reinforcement and polymer matrix and weakening of the core. The numerical accuracy of the model was assessed using data obtained from fire structural tests performed on a combustible sandwich composite consisting of thin woven glass–vinyl ester laminate skins and a thick core of balsa wood. Tests were performed at different tension stress levels and heat fluxes. The model can determine the temperature rise, tensile failure stress and failure mechanism of the sandwich composite in fire. The experimental results presented in the paper also provide new insights into the structural survivability of tension-loaded sandwich composites in fire.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Institute for Agriculture and the Environment
Date Deposited: 28 Jul 2016 05:31
Last Modified: 09 Feb 2017 06:39
Uncontrolled Keywords: fire performance; glass fibre; balsa; sandwich materials; tensile loading
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8606 Industrial Chemicals and Related Products > 860607 Plastic Products (incl. Construction Materials)
Identification Number or DOI: 10.1016/j.compstruct.2014.03.016
URI: http://eprints.usq.edu.au/id/eprint/28647

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