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Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design

Zhaofei Xiao, Ryan Thornhill, Hari Arora Orcid Logo, Robert Warren Orcid Logo, Fawzi Belblidia Orcid Logo

Propellants, Explosives, Pyrotechnics

Swansea University Authors: Zhaofei Xiao, Ryan Thornhill, Hari Arora Orcid Logo, Robert Warren Orcid Logo, Fawzi Belblidia Orcid Logo

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DOI (Published version): 10.1002/prep.202200152

Abstract

This study offers improved safety design guidelines for high explosives (HE), creating impact insensitive geometries, capitalising on the potential for additive layer manufacturing techniques. There are numerous safety concerns when considering energetic materials and HEs, the primary concern, subje...

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Published in: Propellants, Explosives, Pyrotechnics
ISSN: 0721-3115 1521-4087
Published: Wiley 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa62061
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spelling 2022-12-16T16:36:17.1208100 v2 62061 2022-11-28 Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design 5b2106cd0d9a946116ddbabeb88abdd2 Zhaofei Xiao Zhaofei Xiao true false 215f5d4d26b8c3df6c860609a6a5e7eb Ryan Thornhill Ryan Thornhill true false ed7371c768e9746008a6807f9f7a1555 0000-0002-9790-0907 Hari Arora Hari Arora true false 525dd6f0b429d5e2ef9bb22c6cc82cb2 0000-0001-8409-5622 Robert Warren Robert Warren true false 7e0feb96ca2d685180b495e8983f3940 0000-0002-8170-0468 Fawzi Belblidia Fawzi Belblidia true false 2022-11-28 AERO This study offers improved safety design guidelines for high explosives (HE), creating impact insensitive geometries, capitalising on the potential for additive layer manufacturing techniques. There are numerous safety concerns when considering energetic materials and HEs, the primary concern, subject of this work, is the risk of unplanned detonation from impact. There are multiple potential causes for unplanned detonation due to impact; one of which is the impact from a high-speed foreign object. Despite this substantial risk, the problem has not been publicly addressed by means of adjusting the design of the charge itself. Therefore, investigations into the internal design of the charge were executed, whereby the inclusion of various sized and shaped voids are assessed, to establish their effect upon the reactivity of the HE. Using computational modelling, allows for numerous designs to be assessed and developed, and the impact sensitivity of the charge to be tested across a range of scenarios. The proposed validated computational model enables designs to be optimised in a safe and efficient manner, reducing the number of physical tests required, and thus minimising time, cost and the environmental impact. Journal Article Propellants, Explosives, Pyrotechnics 0 Wiley 0721-3115 1521-4087 High explosive; blast; safety; additive manufacturing 21 11 2022 2022-11-21 10.1002/prep.202200152 COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University ASTUTE 2020 European Regional Development Fund Welsh Government Higher Education Institutions EPSRC Impact Acceleration Account 2022-12-16T16:36:17.1208100 2022-11-28T08:38:22.9706447 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Zhaofei Xiao 1 Ryan Thornhill 2 Hari Arora 0000-0002-9790-0907 3 Robert Warren 0000-0001-8409-5622 4 Fawzi Belblidia 0000-0002-8170-0468 5 Under embargo Under embargo 2022-11-28T13:46:10.8797611 Output 1567405 application/pdf Accepted Manuscript true 2023-10-17T00:00:00.0000000 true eng
title Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
spellingShingle Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
Zhaofei Xiao
Ryan Thornhill
Hari Arora
Robert Warren
Fawzi Belblidia
title_short Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
title_full Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
title_fullStr Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
title_full_unstemmed Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
title_sort Impact Safety Improvement of High Explosives Through the Use of Internal Cavity Design
author_id_str_mv 5b2106cd0d9a946116ddbabeb88abdd2
215f5d4d26b8c3df6c860609a6a5e7eb
ed7371c768e9746008a6807f9f7a1555
525dd6f0b429d5e2ef9bb22c6cc82cb2
7e0feb96ca2d685180b495e8983f3940
author_id_fullname_str_mv 5b2106cd0d9a946116ddbabeb88abdd2_***_Zhaofei Xiao
215f5d4d26b8c3df6c860609a6a5e7eb_***_Ryan Thornhill
ed7371c768e9746008a6807f9f7a1555_***_Hari Arora
525dd6f0b429d5e2ef9bb22c6cc82cb2_***_Robert Warren
7e0feb96ca2d685180b495e8983f3940_***_Fawzi Belblidia
author Zhaofei Xiao
Ryan Thornhill
Hari Arora
Robert Warren
Fawzi Belblidia
author2 Zhaofei Xiao
Ryan Thornhill
Hari Arora
Robert Warren
Fawzi Belblidia
format Journal article
container_title Propellants, Explosives, Pyrotechnics
container_volume 0
publishDate 2022
institution Swansea University
issn 0721-3115
1521-4087
doi_str_mv 10.1002/prep.202200152
publisher Wiley
college_str Faculty of Science and Engineering
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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 Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering
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description This study offers improved safety design guidelines for high explosives (HE), creating impact insensitive geometries, capitalising on the potential for additive layer manufacturing techniques. There are numerous safety concerns when considering energetic materials and HEs, the primary concern, subject of this work, is the risk of unplanned detonation from impact. There are multiple potential causes for unplanned detonation due to impact; one of which is the impact from a high-speed foreign object. Despite this substantial risk, the problem has not been publicly addressed by means of adjusting the design of the charge itself. Therefore, investigations into the internal design of the charge were executed, whereby the inclusion of various sized and shaped voids are assessed, to establish their effect upon the reactivity of the HE. Using computational modelling, allows for numerous designs to be assessed and developed, and the impact sensitivity of the charge to be tested across a range of scenarios. The proposed validated computational model enables designs to be optimised in a safe and efficient manner, reducing the number of physical tests required, and thus minimising time, cost and the environmental impact.
published_date 2022-11-21T04:21:23Z
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