Protective performance of shear stiffening gel-modified foam against ballistic impact: Experimental and numerical study | |
Tu H(涂欢)1; Yang HW(杨昊玮)1,5; Xu, Pengzhao2,3; Yang, Zhe4; Tang F(唐帆)1,5; Dong C(董承)1,5![]() ![]() ![]() ![]() | |
Source Publication | DEFENCE TECHNOLOGY
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2024-02-01 | |
Volume | 32Pages:510-520 |
ISSN | 2096-3459 |
Abstract | As one of the most widely used personal protective equipment (PPE), body armors play an important role in protecting the human body from the high-velocity impact of bullets or projectiles. The body torso and critical organs of the wear may suffer severe behind-armor blunt trauma (BABT) even though the impactor is stopped by the body armor. A type of novel composite material through incorporating shear stiffening gel (STG) into ethylene-vinyl acetate (EVA) foam is developed and used as buffer layers to reduce BABT. In this paper, the protective performance of body armors composed of fabric bulletproof layers and a buffer layer made of foam material is investigated both experimentally and numerically. The effectiveness of STG-modified EVA in damage relief is verified by ballistic tests. In parallel with the experimental study, numerical simulations are conducted by LS-DYNA (R) to investigate the dynamic response of each component and capture the key mechanical parameters, which are hardly obtained from field tests. To fully describe the material behavior under the transient impact, the selected constitutive models take the failure and strain rate effect into consideration. A good agreement between the experimental observations and numerical results is achieved to prove the validity of the modelling method. The tests and simulations show that the impact-induced deformation on the human body is significantly reduced by using STG-modified EVA as the buffering material. The improvement of protective performance is attributed to better dynamic properties and more outstanding energy absorption capability of the composite foam. (c) 2023 China Ordnance Society. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
Keyword | Ballistic behavior Composite foam Shear stiffening gel Finite element analysis Protective mechanism |
DOI | 10.1016/j.dt.2023.10.001 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:001189017400001 |
WOS Keyword | BODY ARMOR ; FABRIC COMPOSITES ; BEHAVIOR ; INJURIES ; MODEL |
WOS Research Area | Engineering |
WOS Subject | Engineering, Multidisciplinary |
Funding Project | Beijing Municipal Science and Technology Commission[6142606221105] ; [Z221100005822006] |
Funding Organization | Beijing Municipal Science and Technology Commission |
Classification | 二类/Q1 |
Ranking | 1 |
Contributor | Guo, Yacong |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/94754 |
Collection | 流固耦合系统力学重点实验室 |
Corresponding Author | Guo YC(郭雅悰); Wei YP(魏延鹏) |
Affiliation | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Northwestern Polytech Univ, Sch Mech Engn, Xian 710072, Peoples R China; 3.Xian Inst Electromech Informat Technol, Xian 710065, Peoples R China; 4.Sci & Technol Transient Impact Lab, Beijing 102202, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Tu H,Yang HW,Xu, Pengzhao,et al. Protective performance of shear stiffening gel-modified foam against ballistic impact: Experimental and numerical study[J]. DEFENCE TECHNOLOGY,2024,32:510-520. |
APA | Tu H.,Yang HW.,Xu, Pengzhao.,Yang, Zhe.,Tang F.,...&Wei YP.(2024).Protective performance of shear stiffening gel-modified foam against ballistic impact: Experimental and numerical study.DEFENCE TECHNOLOGY,32,510-520. |
MLA | Tu H,et al."Protective performance of shear stiffening gel-modified foam against ballistic impact: Experimental and numerical study".DEFENCE TECHNOLOGY 32(2024):510-520. |
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