文献类型：期刊文献

英文题名：Experimental investigation on the characteristics of temporary cavity in BABT with 9 mm projectiles

作者：Luo, Shaomin Wen, Yaoke Li, Juan

通信作者：Luo, SM[1]

机构：[1]Guizhou Inst Technol, Sch Aerosp Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Jiangsu, Peoples R China;[3]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Aerosp Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院;

年份：2021

卷号：323

外文期刊名：FORENSIC SCIENCE INTERNATIONAL

收录：;Scopus(收录号：2-s2.0-85104359668);WOS:【SCI-EXPANDED(收录号:WOS:000652848900004)】；

基金：The work presented in this paper was supported by National Natural Science Foundation of China (Grant No. 11902088, 11872215) , Natural Science Research Project of Guizhou Education Department ( [2021] 261) , the Creative Research Groups Program of Guizhou Educational Commission under Grant [2018] 026, and the Engineering Research Center of Guizhou Ordinary Institution of Higher Education under Grant [2018] 007.

语种：英文

外文关键词：Behind armor blunt trauma (BABT); Temporary cavity; Evolution characteristics; Change of cavity volume

摘要：Temporary cavity, one physical phenomenon in BABT reflects the dynamic response of biological tissues and is used to evaluate the trauma. To clarify the characteristics of cavity evolution during 9 mm Luger penetration, we obtain the deformation profiles by using an experimental method with a high-speed camera and thereby visualize the cavity formation and development. According to the dynamic impact experiments at the velocity from 220 to 420 m/s, the temporary cavity profile can be approximately regarded as a semiellipsoid. The maximum depth increases as a quadratic function of velocity. Additionally, the maximum volume of the temporary cavity is attained significantly after the maximum depth. The change rate of cavity volume in the expansion stage is larger than that in the contraction stage. (c) 2021 Elsevier B.V. All rights reserved.