Journal article 1044 views
Damage and deformation in composite sandwich panels exposed to multiple and single explosive blasts
Hari Arora 
,
P. Del Linz,
J.P. Dear
,
P. Del Linz,
J.P. Dear
International Journal of Impact Engineering, Volume: 104, Pages: 95 - 106
Swansea University Author:
Hari Arora
Full text not available from this repository: check for access using links below.
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...
| Published in: | International Journal of Impact Engineering |
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| ISSN: | 0734-743X |
| Published: |
2017
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa37123 |
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| 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 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. |
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| Keywords: |
Sandwich structures, Glass-fibre reinforced polymer (GFRP), Air-blast |
| College: |
Faculty of Science and Engineering |
| Start Page: |
95 |
| End Page: |
106 |