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Modelling the behaviour of composite sandwich structures when subject to air-blast loading / Hari, Arora

The International Journal of Multiphysics, Volume: 6, Issue: 3, Pages: 199 - 218

Swansea University Author: Hari, Arora

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Abstract

Large-scale glass fibre reinforced polymer (GFRP) and carbon fibre reinforced polymer (CFRP) sandwich structures (1.6 m x 1.3 m) were subject to explosive air blast (100 kg TNT equivalent) at stand-off distances of 14 m. Digital image correlation (DIC) was used to obtain full-field data for the rear...

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Published in: The International Journal of Multiphysics
ISSN: 1750-9548
Published: 2012
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa37202
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Abstract: Large-scale glass fibre reinforced polymer (GFRP) and carbon fibre reinforced polymer (CFRP) sandwich structures (1.6 m x 1.3 m) were subject to explosive air blast (100 kg TNT equivalent) at stand-off distances of 14 m. Digital image correlation (DIC) was used to obtain full-field data for the rear-face of each deforming target. A steel plate of comparable mass per unit area was also subjected to the same blast conditions for comparison. The experimental data was then verified with finite element models generated in Abaqus/Explicit. Close agreement was obtained between the numerical and experimental results, confirming that the CFRP panels had a superior blast performance to the GFRP panels. Moreover all composite targets sustained localised failures (that were more severe in the GFRP targets) but retained their original shape post blast. The rear-skins remained intact for each composite target with core shear failure present.
College: College of Engineering
Issue: 3
Start Page: 199
End Page: 218