【摘要】 热击波是电子束辐照靶材料时在其内产生材料响应的一个重要力学现象。论述了近两年来我们在“闪光二号”装置上进行电子束辐照平板靶产生热击波的实验研究。使用的靶厚为２．８～６．５ｍｍ，靶材为ＬＹ－１２铝，靶上能通量为８７～１５２Ｊ／ｃｍ￣２。实验结果表明，实测热击波应力峰值为０．３５～２．０ＧＰａ，热击波平均作用时间约为０．２９μｓ，均半高宽约为０．１４μｓ，平均上升时间约为０．１０μｓ。更多还原

【Abstract】 The thermal shock wave is an important mechanic phenomenon of the material re-sponse preduced in the target material bombarded by electron beain.In this paper,the experimen-tal studies of the thermal shock wave produced in the flat plate targets bombarded by electronbeam on “FLASH Ⅱ”equipment during the recent years are discussed.The target material is LY-12 aluminum alloy with thicknesses of 2.8～6.5 mm.The range of energy fluxes on targets is 87～152 J/cm￣2. Experimentally measured stress peaks of the thermal shock waves is 0. 35～2. 0GPa, average acting time of the thermal shock waves about 0. 29μs,average semi-high widthabout 0. 14μs,and average rise time about 0. 1 0μs.更多还原