Dynamic response of cylindrical and spherical sandwich structures subjected to deflagration pressure released by reactive material fragment

摘要：

　　In this paper, the reactive material fragment sintered by Al and PTFE particles is launched by a ballistic gun, the reactive material fragment impacts on a steel anvil in a test chamber after perforating a thin plate, then deflagrates.The deflagration pressure curves are obtained by three pressure sensors and input to the simulation software ANSYS LS-DYNA.On this basis, the dynamic response comparison between cylindrical and spherical sandwich structures subjected to deflagration pressure released by reactive material fragment is studied.The simulation results show that the dynamic response process of cylindrical and spherical sandwich structures have been both divided into three specific stages and the deformation modes have been classified and discussed systematically.And spherical sandwich structures have a better performance in resisting deflagration pressure.These simulation finding can guide well the theoretical study and optimal design of spherical sandwich structures subjected to deflagration pressure released by reactive material fragment.

关键词： Reactive material fragment Deflagration Cylindrical and spherical sandwich structure Dynamic response

作者: Wei LI Li-xin QIAN Shun-shan FENG Gao-peng FENG Yong-gang LU

作者单位: Institute of system engineering, CAEP.Mianyang, 621999, China State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology,Beijing, 1

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 412-417

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）