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Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts

Hari Arora Orcid Logo, P. Del Linz, J.P. Dear

International Journal of Impact Engineering, Volume: 104, Pages: 95 - 106

Swansea University Author: Hari Arora Orcid Logo

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DOI (Published version): 10.1016/j.ijimpeng.2017.01.017

Abstract

The blast resistance of glass-fibre reinforced polymer (GFRP) sandwich structures has been investigated for increasing shock intensity and for multiple blast exposures. In this study, sandwich panels of 1.6 m x 1.3 m were subjected to 30 kg charges of C4 explosive at stand-off distances from 8 m to...

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Published in: International Journal of Impact Engineering
ISSN: 0734-743X
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa37123
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first_indexed 2017-11-28T20:12:56Z
last_indexed 2020-12-16T03:55:29Z
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spelling 2020-12-15T10:32:19.1119750 v2 37123 2017-11-28 Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts ed7371c768e9746008a6807f9f7a1555 0000-0002-9790-0907 Hari Arora Hari Arora true false 2017-11-28 MEDE The blast resistance of glass-fibre reinforced polymer (GFRP) sandwich structures has been investigated for increasing shock intensity and for multiple blast exposures. In this study, sandwich panels of 1.6 m x 1.3 m were subjected to 30 kg charges of C4 explosive at stand-off distances from 8 m to 16 m. These targets formed part of two studies presented here: one, to observe the loading of the same geometry of target to an increasing shock intensity; and the second, to observe the response of one target to multiple blast impacts. Experimental data provides detailed data for sandwich panel response, which are often used in civil and military structures, where air-blast loading represents a serious threat. High-speed photography, with digital image correlation (DIC), and laser gauge systems were employed to monitor the deformation of these structures during the blasts. The experimental data provides for the development of analytical and computational models. Initial analysis of the blast experiments are presented alongside a finite element model to establish trends in deformation behaviour. Details of failure mechanisms and the conditions for the onset of failure are also discussed. Journal Article International Journal of Impact Engineering 104 95 106 0734-743X Sandwich structures, Glass-fibre reinforced polymer (GFRP), Air-blast 30 6 2017 2017-06-30 10.1016/j.ijimpeng.2017.01.017 COLLEGE NANME Biomedical Engineering COLLEGE CODE MEDE Swansea University 2020-12-15T10:32:19.1119750 2017-11-28T13:33:36.9127097 Faculty of Science and Engineering School of Engineering and Applied Sciences - Biomedical Engineering Hari Arora 0000-0002-9790-0907 1 P. Del Linz 2 J.P. Dear 3
title Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
spellingShingle Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
Hari Arora
title_short Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
title_full Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
title_fullStr Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
title_full_unstemmed Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
title_sort Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
author_id_str_mv ed7371c768e9746008a6807f9f7a1555
author_id_fullname_str_mv ed7371c768e9746008a6807f9f7a1555_***_Hari Arora
author Hari Arora
author2 Hari Arora
P. Del Linz
J.P. Dear
format Journal article
container_title International Journal of Impact Engineering
container_volume 104
container_start_page 95
publishDate 2017
institution Swansea University
issn 0734-743X
doi_str_mv 10.1016/j.ijimpeng.2017.01.017
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Biomedical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Biomedical Engineering
document_store_str 0
active_str 0
description The blast resistance of glass-fibre reinforced polymer (GFRP) sandwich structures has been investigated for increasing shock intensity and for multiple blast exposures. In this study, sandwich panels of 1.6 m x 1.3 m were subjected to 30 kg charges of C4 explosive at stand-off distances from 8 m to 16 m. These targets formed part of two studies presented here: one, to observe the loading of the same geometry of target to an increasing shock intensity; and the second, to observe the response of one target to multiple blast impacts. Experimental data provides detailed data for sandwich panel response, which are often used in civil and military structures, where air-blast loading represents a serious threat. High-speed photography, with digital image correlation (DIC), and laser gauge systems were employed to monitor the deformation of these structures during the blasts. The experimental data provides for the development of analytical and computational models. Initial analysis of the blast experiments are presented alongside a finite element model to establish trends in deformation behaviour. Details of failure mechanisms and the conditions for the onset of failure are also discussed.
published_date 2017-06-30T03:46:38Z
_version_ 1763752226209136640
score 10.998116

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