Evaluating the heat resistance of thermal insulated sandwich composites subjected to a turbulent fire

Kandare, Everson and Di Modica, Pietro and Chevali, Venkata S. and Gibson, Geoff A. (2016) Evaluating the heat resistance of thermal insulated sandwich composites subjected to a turbulent fire. Fire and Materials , 40 (4). pp. 586-598. ISSN 0308-0501

Abstract

The fire structural response of sandwich composite laminates incorporating bio-derived constituents subjected to a turbulent flaming fire was investigated. Fire structural tests were conducted on thermal insulated sandwich composites incorporating a thin surface-bonded non-woven glass fibre tissue impregnated with char-forming fire retardant, ammonium polyphosphate. The sandwich composite laminates were loaded in compression at 10%, 15% or 20% of the ultimate compressive strength while simultaneously subjected to turbulent flames imposing an incident heat flux of 35 kW/m2. Generally, the failure time increased with the reduced applied compressive load. The thermal insulated sandwich composite laminates had considerably improved fire resistance in comparison to their unmodified counterparts. The unmodified composites failed 96 s earlier than the thermal insulated specimens when the compression load was 10% of the ultimate compressive strength. The presence of ammonium polyphosphate at the heat-exposed surface promoted the formation of a consolidated char layer, which slowed down heat conduction into composite laminate substrate. The fire reaction parameters measured via the cone calorimeter provided insights into the thermal response hence fire structural survivability of sandwich composite laminates.


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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 - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 18 Aug 2016 06:03
Last Modified: 04 Jun 2018 06:26
Uncontrolled Keywords: fire reaction properties; fire resistance; fire structural performance; sandwich composites; turbulent fire
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090407 Process Control and Simulation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1002/fam.2312
URI: http://eprints.usq.edu.au/id/eprint/29607

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