橡皮弹胸部钝击损伤的有限元法评估

doi:10.16182/j.issn1004731x.joss.19-0119

系统仿真学报 ›› 2020, Vol. 32 ›› Issue (9): 1762-1770.doi: 10.16182/j.issn1004731x.joss.19-0119

• 物理效应/模拟器仿真技术 • 上一篇下一篇

橡皮弹胸部钝击损伤的有限元法评估

汪送, 战仁军, 段雄义

武警工程大学装备管理与保障学院,陕西西安 710086

收稿日期:2019-03-20 修回日期:2019-11-11 出版日期:2020-09-18 发布日期:2020-09-18
作者简介:汪送(1984-),男,湖南衡阳,博士,讲师,研究方向为非致命武器。
基金资助:
国家自然科学基金(71401179),中国博士后科学基金面上项目(2019M664027),武警装备军内科研项目(WJ20182A040057),武警工程大学基础研究基金(WJY201919,WJY202020)

Finite Element Method Evaluation on Chest Blunt Injury by Rubber Projectile

Wang Song, Zhan Renjun, Duan Xiongyi

College of Equipment Management and Support, Engineering University of People's Armed Police, Xi'an 710086, China

Received:2019-03-20 Revised:2019-11-11 Online:2020-09-18 Published:2020-09-18

摘要/Abstract

摘要： 为揭示橡皮弹的非致命致伤机理,提高其安全服役水平,通过构建并验证18.4 mm橡皮弹弹丸有限元模型和改进型胸部钝击损伤评估模型,进行了不同载荷下的虚拟冲击测试实验,得到了应力-时间响应和形变-时间响应数据。结果表明,达到峰值应力的时间(0.2 ms以下)远小于达到最大形变量的时间(4~5 ms),说明损伤不在于冲击本身,而在于能量的传递与扩散。基于粘性损伤判据,对不同碰击速度下的损伤情况进行了评估,给出了18.4 mm橡皮弹不同射距下的安全使用建议。

关键词: 橡皮弹, 胸部钝击, 损伤评估, 有限元仿真

Abstract: In order to reveal the non-lethal injury mechanism of rubber projectile and improve its safety service level, the 18.4 mm rubber projectile finite element model and the improved chest blunt injury assessment model are constructed and verified. The virtual impact test experiments under different loads are carried out, and the stress-time response and deformation-time response data are obtained. The results show that the time to reach the peak stress (less than 0.2 ms) is much shorter than the time to reach the maximum deformation variable (4~5 ms), which means the damage is not caused by the impact itself but by the transmission and diffusion of energy. Based on the Viscous Criterion, the damage conditions at different impact speeds are evaluated, and the safe use recommendations of the 18.4 mm rubber projectile under different shooting distances are given.

Key words: rubber projectile, thorax blunt impact, trauma assessment, finite element simulation

中图分类号:

TP391.9

汪送, 战仁军, 段雄义. 橡皮弹胸部钝击损伤的有限元法评估[J]. 系统仿真学报, 2020, 32(9): 1762-1770.

Wang Song, Zhan Renjun, Duan Xiongyi. Finite Element Method Evaluation on Chest Blunt Injury by Rubber Projectile[J]. Journal of System Simulation, 2020, 32(9): 1762-1770.

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橡皮弹胸部钝击损伤的有限元法评估

Finite Element Method Evaluation on Chest Blunt Injury by Rubber Projectile

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