The effect of scaling building configuration blast experiments on positive phase blast wave parameters
The effect of scaling building configuration blast experiments on positive phase blast wave parameters
Explosions in an urban setting can have a significant negative impact. There is a need to further understand the loading effects caused by the blast’s interaction with structures. In conjunction with this, the effects of scaling and understanding the limitations of laboratory experiments are equally important given the cost incurred for full-scale experiments. The aim of this study was to determine the scaling effects on blast wave parameters found for reduced-scale urban blast scenario laboratory experiments. This paper presents the results of numerical modelling and physical experiments on detonating cuboidal PE-4 charges and measuring the pressure in direct line of sight and at three distinct positions around the corner of a small-scale “building” parallel to the rear wall. Two scales were used, namely 75% and 100%. Inter-scaling between 75% and 100% worked fairly well for positions shielded by the corner of the wall. Additionally, the lab-scale results were compared to similar (but not identical) field trials at an equivalent scale of 250%. The comparison between lab-scale idealised testing and the larger-scale field trials published by Gajewksi and Sielicki in 2020, indicated sensitivity to factors such as detonator positioning, explosive material, charge confinement/mounting, building surface roughness, and environment.
blast, blast resilience, explosion modelling, scaling, urban blast effects
Gabriel, Sherlyn
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Denny, Jack
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Chung Kim Yuen, Steeve
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Langdon, Genevieve
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Govender, Reuben
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12 May 2023
Gabriel, Sherlyn
3d919697-e2ee-4bc1-b535-01ea6ee331f7
Denny, Jack
7bd3e650-6c4e-4149-b408-2166e377b216
Chung Kim Yuen, Steeve
97f87574-96ea-4d0a-8875-dac780229bed
Langdon, Genevieve
bfdfdec0-401c-4839-8a68-8c8c46ddf667
Govender, Reuben
0bdaa8dc-7e97-4b9e-8698-8aa8c9a25569
Gabriel, Sherlyn, Denny, Jack, Chung Kim Yuen, Steeve, Langdon, Genevieve and Govender, Reuben
(2023)
The effect of scaling building configuration blast experiments on positive phase blast wave parameters.
Applied Sciences, 13 (5956), [5956].
(doi:10.3390/app13105956).
Abstract
Explosions in an urban setting can have a significant negative impact. There is a need to further understand the loading effects caused by the blast’s interaction with structures. In conjunction with this, the effects of scaling and understanding the limitations of laboratory experiments are equally important given the cost incurred for full-scale experiments. The aim of this study was to determine the scaling effects on blast wave parameters found for reduced-scale urban blast scenario laboratory experiments. This paper presents the results of numerical modelling and physical experiments on detonating cuboidal PE-4 charges and measuring the pressure in direct line of sight and at three distinct positions around the corner of a small-scale “building” parallel to the rear wall. Two scales were used, namely 75% and 100%. Inter-scaling between 75% and 100% worked fairly well for positions shielded by the corner of the wall. Additionally, the lab-scale results were compared to similar (but not identical) field trials at an equivalent scale of 250%. The comparison between lab-scale idealised testing and the larger-scale field trials published by Gajewksi and Sielicki in 2020, indicated sensitivity to factors such as detonator positioning, explosive material, charge confinement/mounting, building surface roughness, and environment.
Text
applsci-13-05956
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More information
Accepted/In Press date: 6 May 2023
e-pub ahead of print date: 12 May 2023
Published date: 12 May 2023
Additional Information:
Funding Information:
This research was supported by funding from the University of Cape Town Research Committee, the University of Southampton Global Partnerships Award, the Clinical Informatics Research Unit (CIRU), the University of Southampton, and the International Blast Injury Research Network (IBRN).
Publisher Copyright:
© 2023 by the authors.
Keywords:
blast, blast resilience, explosion modelling, scaling, urban blast effects
Identifiers
Local EPrints ID: 476923
URI: http://eprints.soton.ac.uk/id/eprint/476923
ISSN: 2076-3417
PURE UUID: 010fda25-677d-4c5f-815c-dfa7e0772fa1
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Date deposited: 19 May 2023 16:39
Last modified: 17 Mar 2024 03:52
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Contributors
Author:
Sherlyn Gabriel
Author:
Steeve Chung Kim Yuen
Author:
Genevieve Langdon
Author:
Reuben Govender
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