Evaluation of blast protection using novel-shaped water-filled containers: Experiments and simulations

Bornstein, H, Ryan, S and Mouritz, A 2019, 'Evaluation of blast protection using novel-shaped water-filled containers: Experiments and simulations', International Journal of Impact Engineering, vol. 127, pp. 41-61.


Document type: Journal Article
Collection: Journal Articles

Title Evaluation of blast protection using novel-shaped water-filled containers: Experiments and simulations
Author(s) Bornstein, H
Ryan, S
Mouritz, A
Year 2019
Journal name International Journal of Impact Engineering
Volume number 127
Start page 41
End page 61
Total pages 21
Publisher Pergamon Press
Abstract A combined experimental and numerical investigation was conducted into evaluating the influence of the geometry of a water-filled container on maximising the reduction in deformation it provides to a high-strength steel plate subject to localised blast loading. Experiments were conducted with a range of novel container shapes including a cone, inverted cone, diamond and mushroom. In addition to these container shapes, an array of water bottles known as a kinetic energy defeat device (KEDD) and a high performing quadrangular container design were also evaluated. The performance of each container was evaluated in terms of both the reduction in deformation of a steel target plate and the efficiency of the mitigation in terms of the reduction per unit mass of water. The numerical simulations were found to provide adequate predictions for the novel container shapes. They were then used to isolate the differences in target loading for each container type. Further numerical simulations were then performed to identify improvements in the design of the best performing containers. The best performing novel geometries were the mushroom and inverted cone shaped containers, which are more effective at radially spreading the water. However, the mushroom shaped container was the only container found to outperform the most efficient quadrangular container on a mass efficiency basis. The results of this investigation can be used to assist in the design of water-filled containers that are used as part of a near-field blast protection system on an armoured vehicle or other protected structure.
Subject Mechanical Engineering not elsewhere classified
Keyword(s) Blast
Blast protection
Geometry
Numerical simulation
Water
DOI - identifier 10.1016/j.ijimpeng.2019.01.006
Copyright notice © 2019 Elsevier BV
ISSN 0734-743X
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