To address high-velocity impact accidents during ammunition transportation, the work aims to conduct optimization research on the protective structures of ammunition transport containers against high-velocity impact based on packaging dynamics theory, so as to enhance their survivability and safety. A coupled dynamics model of the ammunition-container system was established, and three types of composite structures such as metal-polyurea outer coating, lining and interlayer were designed. The container responses under impact velocities of 12.2 m/s and 38.1 m/s were simulated with the LS-DYNA explicit dynamics method. By taking metal thickness, polyurea thickness, and stiffener spacing as design variables, and peak acceleration of ammunition, container mass, and maximum deformation as optimization objectives, multi-objective optimization was carried out with the NSGA-Ⅱ algorithm. Configuration C exhibited the optimal protective effect, reducing the peak acceleration by 42% and deformation by 46% and the optimal polyurea thickness range was 4-5 mm. The optimized scheme (metal thickness 3.2 mm, polyurea thickness 4.5 mm, stiffener spacing 180 mm) reduced the peak acceleration by 46% and deformation by 46.6% compared to the bare container, with a mass increase of only 18.5%. Combining packaging dynamics theory with strain-rate sensitive materials can significantly improve the high-velocity impact resistance of ammunition transport containers, providing a theoretical basis for the lightweight and high-protection design of military hazardous material transport containers.
Key words
packaging dynamics /
transport container /
high-velocity impact /
polyurea elastomer /
multi-objective optimization /
finite element analysis
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References
[1] TAO C, JI C, TU J G, et al.Protection Mechanism of Liquid-Filled Welded Square Steel Container with Polyurea Elastomer Subjected to Small-Arms Bullet[J]. Thin-Walled Structures, 2024, 198: 111668.
[2] TAO C, JI C, ZHAO C X, et al.Mechanism of Polyurea in Protecting Liquid-Filled Square Aluminum Tube from the Impact of High-Velocity Projectile[J]. Thin-Walled Structures, 2023, 182: 110315.
[3] Sandia National Labs.Impact testing of the H1224A shipping/storage container (SAND-94-0308)[R]. OSTI, 1994.
[4] 刘亚超, 宣兆龙, 程泽. 弹药集装单元动力学试验研究[J]. 装备环境工程, 2013, 10(1): 49-52.
LIU Y C, XUAN Z L, CHENG Z.Research on Dynamic Test of Ammunition Packaging Unit[J]. Equipment Environmental Engineering, 2013, 10(1): 49-52.
[5] 姚国年, 张卫东, 赵辉. 弹药公路运输随机振动特性分析[J]. 测控技术, 2004, 23(7): 67-69.
YAO G N, ZHANG W D, ZHAO H.Random Vibration Characteristic Analysis of the Ammunition during Road Ransportation[J]. Measurement & Control Technology, 2004, 23(7): 67-69.
[6] BRVIK T, HANSSEN A G, DEY S, et al.On the Ballistic and Blast Load Response of a 20 Ft ISO Container Protected with Aluminium Panels Filled with a Local Mass—Phase I: Design of Protective System[J]. Engineering Structures, 2008, 30(6): 1605-1620.
[7] HANDY K D.Dynamic Impact and Pressure Analysis of the Insensitive Munitions Container PA103 with Modified Design Features[R]. Oak Ridge National Laboratory, 1993.
[8] CHU D Y, YAO K L, et al.Dynamic Behaviors of Polyurea Elastomer: Experimental Characterization, Microscopic Mechanisms and Constitutive Modeling[J]. Applied Mathematics and Mechanics, 2025, 46(9): 1083-1107.
[9] TAO C, JI C, WANG X, et al.Characterization of Combined Blast- and Fragments-Induced Synergetic Damage in Polyurea Coated Liquid-Filled Container[J]. Defence Technology, 2025, 43: 201-224.
[10] 马东, 王成, 邵楠, 等. 冲击波与破片联合加载下聚脲增强多层抗爆结构的防护特性[J]. 兵工学报, 2025, 46(7): 111-122.
MA D, WANG C, SHAO N, et al.Strengthening Effect of Polyurea on Multi-layer Blast-resistant Structure Subjected to Combined Action of Shock Wave and Fragments[J]. Acta Armamentarii, 2025, 46(7): 111-122.
[11] MOHOTTI D, NGO T, MENDIS P, et al.Polyurea Coated Composite Aluminium Plates Subjected to High Velocity Projectile Impact[J]. Materials & Design (1980-2015), 2013, 52: 1-16.
[12] 丁来龙, 马明亮, 冯超, 等. 聚脲材料的优化及抗爆抗侵彻性能研究进展[J]. 材料导报, 2025, 39(4): 237-245.
DING L L, MA M L, FENG C, et al.Advances in Optimization of Polyurea Materials and Their Anti-Explosion and Anti-Invasion Properties[J]. Materials Reports, 2025, 39(4): 237-245.
[13] 王淑雯,许进升,郭宗韬,等.固体火箭冲压发动机燃气流量控制多目标优化研究[J/OL].推进技术,1-14[2026-03-01]. https://link.cnki.net/urlid/11.1813.V.20250801.1642.003.
WANG S W, XU J S, GUO Z T, et al. Multi-objective optimization of gas flow control in solid rocket ramjet[J/OL]. Journal of Propulsion Technology, 1-14[2026-03-01]. https://link.cnki.net/urlid/11.1813.V.20250801.1642.003
[14] ECKSTEIN S, YOUSSEF G.Impact Efficacy of Sandwich Structures with Additively Manufactured Skins and Elastomeric Foam Cores[J]. Composites Part B: Engineering, 2025, 305: 112728.
[15] Ammunition Packaging Market Research Report 2024-2033[R].Ammunition Packaging Market Research Report 2024-2033[R]. USA: Market Intelo, 2024: 45-52.
[16] 向怡霖, 邱爽, 郭辉, 等. 透明聚脲-玻璃复合件在冲击荷载下的动力学性能研究[J]. 包装工程, 2024, 45(19): 125-133.
XIANG Y L, QIU S, GUO H, et al.Dynamic Properties of Transparent Polyurea-Glass Composites under Impact Loading[J]. Packaging Engineering, 2024, 45(19): 125-133.
[17] WANG Z Y, YANG L H, YANG S J, et al.A Novel Composite Material of Aramid Fiber-Reinforced Polyurea Elastomer Matrix: Mechanical Properties and Ballistic Performance[J]. Composites Science and Technology, 2025, 271: 111370.
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