论文部分内容阅读
激光引起金属靶的层裂,目前国外只有少量文献有报道,并主要集中在铝、铜材料。由于脉冲强激光能产生10~7s~(-1)以上的超高应变率,它为在实验室内研究这样极端条件下的材料的断裂行为和机理,提供了几乎唯一的加载手段。本文简要报道我们在中国科技大学“华光”10~(10)W钕玻璃激光器上所做的铝和铁靶层裂实验的初步结果。这是我国首次利用强激光装置实现金属层裂的尝试,为强激光破坏效应的研究提供了现实的前景。
At present, only a few literatures have been reported in foreign countries, mainly focusing on the aluminum and copper materials. Because pulsed intense laser can produce ultra-high strain rates of 10 ~ 7s -1, it provides an almost single loading method for studying the fracture behavior and mechanism of materials in such extreme conditions in the laboratory. This paper briefly reports the preliminary results of the crack test of aluminum and iron target made on the 10 ~ (10) W neodymium glass laser of Huaguang of China University of Science and Technology. This is the first attempt of our country to use the strong laser device to realize the metal splitting, which provides a realistic prospect for the study of strong laser destructive effect.