论文部分内容阅读
采用炸药爆轰－分离飞片加载装置与电容传感技术相结合，由高速示波器连续记录靶板自由面速度剖面，通过波剖面的时间分辨测量，研究了ＭＢ＿２镁、ＬＹ－１２铝、钨合金、２１６９钢四种金属材料的动力学响应特性，给出了这几种材料在弹性－理想塑性模型假设下的本构关系，还给出了它们的动态断裂强度，并对标准化层裂强度与破坏比功、屈服强度之间的相关性进行了分析和讨论。
Using explosive detonation-separation flyer loading device combined with capacitive sensing technology, the free-surface velocity profile of the target was continuously recorded by a high-speed oscilloscope. The time-resolved measurement of the wave profile was used to study the effect of MB 2 Mg, LY-12 aluminum, tungsten alloy , 2169 steel, the constitutive relations of the four kinds of materials under the assumption of elastic-ideal plasticity model are given, and their dynamic fracture strengths are also given. The relationship between normalized spall strength and The correlation between damage specific work and yield strength was analyzed and discussed.