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The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures

H. Arora, P. A. Hooper, J. P. Dear, Hari Arora Orcid Logo

Experimental Mechanics, Volume: 52, Issue: 1, Pages: 59 - 81

Swansea University Author: Hari Arora Orcid Logo

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DOI (Published version): 10.1007/s11340-011-9506-z

Abstract

The resistance of glass-fibre reinforced polymer (GFRP) sandwich panels and laminate tubes to blast in air and underwater environments has been studied. Procedures for monitoring the structural response of such materials during blast events have been devised. High-speed photography was employed duri...

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Published in: Experimental Mechanics
ISSN: 0014-4851 1741-2765
Published: 2012
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URI: https://cronfa.swan.ac.uk/Record/cronfa37203
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spelling 2017-11-28T14:30:09.3973273 v2 37203 2017-11-28 The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures ed7371c768e9746008a6807f9f7a1555 0000-0002-9790-0907 Hari Arora Hari Arora true false 2017-11-28 MEDE The resistance of glass-fibre reinforced polymer (GFRP) sandwich panels and laminate tubes to blast in air and underwater environments has been studied. Procedures for monitoring the structural response of such materials during blast events have been devised. High-speed photography was employed during the air-blast loading of GFRP sandwich panels, in conjunction with digital image correlation (DIC), to monitor the deformation of these structures under shock loading. Failure mechanisms have been revealed by using DIC and confirmed in post-test sectioning. Strain gauges were used to monitor the structural response of similar sandwich materials and GFRP tubular laminates during underwater shocks. The effect of the backing medium (air or water) of the target facing the shock has been identified during these studies. Mechanisms of failure have been established such as core crushing, skin/core cracking, delamination and fibre breakage. Strain gauge data supported the mechanisms for such damage. These studies were part of a research programme sponsored by the Office of Naval Research (ONR) investigating blast loading of composite naval structures. The full-scale experimental results presented here will aid and assist in the development of analytical and computational models. Furthermore, it highlights the importance of support and boundary conditions with regards to blast resistant design. Journal Article Experimental Mechanics 52 1 59 81 0014-4851 1741-2765 Air blast, Underwater blast, Shock, Sandwich structures, Composites 31 12 2012 2012-12-31 10.1007/s11340-011-9506-z COLLEGE NANME Biomedical Engineering COLLEGE CODE MEDE Swansea University 2017-11-28T14:30:09.3973273 2017-11-28T14:29:17.0886067 Faculty of Science and Engineering School of Engineering and Applied Sciences - Biomedical Engineering H. Arora 1 P. A. Hooper 2 J. P. Dear 3 Hari Arora 0000-0002-9790-0907 4
title The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
spellingShingle The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
Hari Arora
title_short The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
title_full The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
title_fullStr The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
title_full_unstemmed The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
title_sort The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures
author_id_str_mv ed7371c768e9746008a6807f9f7a1555
author_id_fullname_str_mv ed7371c768e9746008a6807f9f7a1555_***_Hari Arora
author Hari Arora
author2 H. Arora
P. A. Hooper
J. P. Dear
Hari Arora
format Journal article
container_title Experimental Mechanics
container_volume 52
container_issue 1
container_start_page 59
publishDate 2012
institution Swansea University
issn 0014-4851
1741-2765
doi_str_mv 10.1007/s11340-011-9506-z
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 resistance of glass-fibre reinforced polymer (GFRP) sandwich panels and laminate tubes to blast in air and underwater environments has been studied. Procedures for monitoring the structural response of such materials during blast events have been devised. High-speed photography was employed during the air-blast loading of GFRP sandwich panels, in conjunction with digital image correlation (DIC), to monitor the deformation of these structures under shock loading. Failure mechanisms have been revealed by using DIC and confirmed in post-test sectioning. Strain gauges were used to monitor the structural response of similar sandwich materials and GFRP tubular laminates during underwater shocks. The effect of the backing medium (air or water) of the target facing the shock has been identified during these studies. Mechanisms of failure have been established such as core crushing, skin/core cracking, delamination and fibre breakage. Strain gauge data supported the mechanisms for such damage. These studies were part of a research programme sponsored by the Office of Naval Research (ONR) investigating blast loading of composite naval structures. The full-scale experimental results presented here will aid and assist in the development of analytical and computational models. Furthermore, it highlights the importance of support and boundary conditions with regards to blast resistant design.
published_date 2012-12-31T03:46:47Z
_version_ 1763752235399905280
score 11.017797

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