Progress in magnetic loading techniques for isentropic compression experiments and ultra-high velocity flyer launching
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摘要:
利用脉冲大电流产生随时间平滑上升的磁压,实现对样品的准等熵平面压缩和超高速飞片发射,是近十年来发展和完善起来的一种新型的强动态斜波加载技术(ramp wave loading).本文简述了其原理、加载装置及数据处理方法等方面的研究进展,同时着重评述利用该技术和方法开展高压物态方程、材料动力学响应方面的研究进展,并对该技术在冲击动力学、天体物理和高能量密度物理等方面的应用前景进行了展望.
Abstract:It is a new loading technique characterized as ramp wave loading developted to explore the rapid response of material at pressures, temperatures and stress or strain rate not attainable in conventional shock experiments, which was firstly developed on Sandia Z accelerator in 1999. In this paper, its principle; and progress in loading apparatus and methodology for the analysis of experimental data are presented, and its applications in the study of EOS data and dynamic response of material characterization are reviewed.
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