Computational design and simulation of the Mg-Cu system gradeddensity impactors for complex loading experiments  

作　　者：BAI JingSong TANG Mi LUO GuoQiang YU JiDong YUAN Shuai DAI ChengDa WU Qiang TAN Hua 

机构地区：[1]National Key Laboratory of Shock Wave and Detonation Physics (LSD), Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China [2]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China [3]State key laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2011年第9期1710-1716,共7页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 11072228, 11002129);the Science Foundation of China Academy of Engineering Physics (Grant No. 2011B0202005);the Open Foundation of State Key Laboratory of Explosion Science and Technology(Grant No. KFJJ09-06);the Open Foundation of State Key Laboratory of Advanced Technology for Materials Synthesis and Process-ing, Wuhan University of Technology

摘　　要：Two types of Mg-Cu composition system graded density impactors used for complex loading （shock loading and quasi-isentropic compression） are designed by the elastic-plastic hydrodynamic method in this paper. Mixtures of metal powders in the Mg-Cu system are cast into a series of 17 and 25 uniform compositions ranging from 100% Mg to 100% Cu. The graded den- sity impactors are launched to the stationary 10 Ixm aluminum film and 12 mm LiF window targets by a two-stage light-gas gun in the National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, and the resulting wave profiles are measured with the DISAR system. Hydrodynamic simulation results are perfectly consistent with the experiments. Our work in this paper will set up a foundation for further research of controllable loading/releasing routes and rate experiments in the future.Two types of Mg-Cu composition system graded density impactors used for complex loading (shock loading and quasi-isentropic compression) are designed by the elastic-plastic hydrodynamic method in this paper. Mixtures of metal powders in the Mg-Cu system are cast into a series of 17 and 25 uniform compositions ranging from 100% Mg to 100% Cu. The graded density impactors are launched to the stationary 10 m aluminum film and 12 mm LiF window targets by a two-stage light-gas gun in the National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, and the resulting wave profiles are measured with the DISAR system. Hydrodynamic simulation results are perfectly consistent with the experiments. Our work in this paper will set up a foundation for further research of controllable loading/releasing routes and rate experiments in the future.

关 键 词：complex loading graded density impactor Mg-Cu system simulations 

分 类 号：O347.1[理学—固体力学] TU452[理学—力学]