3D multi-scale numerical simulation on W-Cu shaped charge jet

摘要：

　　Tungsten-copper(W-Cu) is a kind of metal composites constituted of two immiscible phases without interfacial reaction and is always regarded as homogenous material in conventional simulations.However, the dynamic response of W-Cu under explosive loading is still unclear in the meso-scale scope due to the significant difference between the chemical and physical properties of tungsten and coppen In order to investigate the mesoscopic mechanism of W-Cu shaped charge jet formation, the generation program of W-Cu 3D meso-discrete model was developed based on the random particles principle.Both meso-scale and multi-scale finite element numerical simulations were carried out on the W-Cu jet formation process by using the SPEED software.The results show that the average velocity of Cu phase is higher than W phase, leading to a phase segregation and composition gradient in W-Cu jet during its forming process.

关键词： W-Cu composites Shaped charge jet 3D multi-scale simulation

作者: Fang WANG Jian-wei JIANG Pei WANG

作者单位: Institute of Applied Physics and Computational Mathematics, Beijing 100094, China;State Key Laborato State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 1 Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

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: 676-680

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）