Molecular Dynamics Simulation on Cratering Characteristics Induced by Hypervelocity Impact*

摘要：

　　The process of crater formation induced by hypervelocity impact at various impact angles is explored by using molecular dynamics method.The crater formation is similar with the macro physical process.A melt region is generated around the crater and certain localized shear deformation emerges along the 45° direction out of the melt region.The radius of the melt region becomes smaller with the decreasing impact angle.The ejecta is partially ionized with an ionization percent about 1%, and the maximum is at the impact angle of 45° and the minimum at 90°.

关键词： molecular dynamics hypervelocity impact cratering shock melt ionization

作者: Yuanyuan Ju Qingming Zhang Zizheng Gong

作者单位: state Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 1 National Key Laboratory of Science and Technology on Reliability and Environment Engineering, Beijin

会议类型: 国内会议

会议名称: 中国交叉科学学会第15届学术年会

会议地点: 郑州

会议语种:英文

页码: 130-133

在线出版日期: 2014-08-07（万方平台首次上网日期，不代表论文的发表时间）