Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet
This paper discusses the general conditions relating to ballistic head protection, analyzing the risks that may occur on contemporary battlefields. A thorough literature review has enabled us to present development trends for helmets used in the largest armies in the world. The authors have focused...
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doaj-f6e9a58b6cb64cc6853d89a8741983d22020-11-24T20:53:19ZengMDPI AGApplied Sciences2076-34172019-07-01913270210.3390/app9132702app9132702Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat HelmetKrzysztof Jamroziak0Marcin Bajkowski1Miroslaw Bocian2Slawomir Polak3Mariusz Magier4Mariusz Kosobudzki5Radoslaw Stepien6Department of Mechanics, Materials Science and Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, PolandInstitute of Mechanics and Printing, Faculty of Production Engineering, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, PolandDepartment of Mechanics, Materials Science and Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, PolandDepartment of Plastic and Metrology, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, 50-371 Wroclaw, PolandInstitute of Mechanics and Printing, Faculty of Production Engineering, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, PolandDepartment of Mechanical Engineering of Industrial Machines and Vehicles, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 7/9, 50-371 Wroclaw, PolandDepartment of Plastic and Metrology, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, 50-371 Wroclaw, PolandThis paper discusses the general conditions relating to ballistic head protection, analyzing the risks that may occur on contemporary battlefields. A thorough literature review has enabled us to present development trends for helmets used in the largest armies in the world. The authors have focused on impacts to the helmet shell, overloading the entire helmet-protected head−neck system. The main objective of this study is to investigate the protective capability of a helmet shell when subjected to projectile−helmet contact, with contact curvature taken as being an indicator of the impact energy concentration. Blunt head trauma was estimated using backface deformation (BFD). The Wz.93 combat helmet was used for testing. Analytically, dependencies were derived to determine the scope of BFD. A five-parameter model of the helmet piercing process was adopted, thus obtaining the optimal BFD range. Verification of theoretical considerations was carried out on a specially developed research stand. In the ballistic tests, dynamic deflection of the helmet’s body was registered using a speed camera. On the impact testing stand, a fragment of the helmet was pierced, producing results in the low impact velocity range. Data have been presented on the appropriate graph in order to compare them with values specified in the relevant standard and existing literature. Our results correlate well with the norm and literature values.https://www.mdpi.com/2076-3417/9/13/2702ballistic impactblunt traumaballistic protectionbulletproof helmet testing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Krzysztof Jamroziak Marcin Bajkowski Miroslaw Bocian Slawomir Polak Mariusz Magier Mariusz Kosobudzki Radoslaw Stepien |
spellingShingle |
Krzysztof Jamroziak Marcin Bajkowski Miroslaw Bocian Slawomir Polak Mariusz Magier Mariusz Kosobudzki Radoslaw Stepien Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet Applied Sciences ballistic impact blunt trauma ballistic protection bulletproof helmet testing |
author_facet |
Krzysztof Jamroziak Marcin Bajkowski Miroslaw Bocian Slawomir Polak Mariusz Magier Mariusz Kosobudzki Radoslaw Stepien |
author_sort |
Krzysztof Jamroziak |
title |
Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet |
title_short |
Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet |
title_full |
Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet |
title_fullStr |
Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet |
title_full_unstemmed |
Ballistic Head Protection in the Light of Injury Criteria in the Case of the Wz.93 Combat Helmet |
title_sort |
ballistic head protection in the light of injury criteria in the case of the wz.93 combat helmet |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2019-07-01 |
description |
This paper discusses the general conditions relating to ballistic head protection, analyzing the risks that may occur on contemporary battlefields. A thorough literature review has enabled us to present development trends for helmets used in the largest armies in the world. The authors have focused on impacts to the helmet shell, overloading the entire helmet-protected head−neck system. The main objective of this study is to investigate the protective capability of a helmet shell when subjected to projectile−helmet contact, with contact curvature taken as being an indicator of the impact energy concentration. Blunt head trauma was estimated using backface deformation (BFD). The Wz.93 combat helmet was used for testing. Analytically, dependencies were derived to determine the scope of BFD. A five-parameter model of the helmet piercing process was adopted, thus obtaining the optimal BFD range. Verification of theoretical considerations was carried out on a specially developed research stand. In the ballistic tests, dynamic deflection of the helmet’s body was registered using a speed camera. On the impact testing stand, a fragment of the helmet was pierced, producing results in the low impact velocity range. Data have been presented on the appropriate graph in order to compare them with values specified in the relevant standard and existing literature. Our results correlate well with the norm and literature values. |
topic |
ballistic impact blunt trauma ballistic protection bulletproof helmet testing |
url |
https://www.mdpi.com/2076-3417/9/13/2702 |
work_keys_str_mv |
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