Abstract

A simple method for evaluating the yield stress of shock-compressed material from the measured unit free-surface velocity history is proposed, verified, and approbated. For the first time, the dynamic yield stress of shock-compressed metal (aluminum) is experimentally evaluated at an elevated temperature. It is found that its value is lower than that at the room temperature and lower than the initial value of the dynamic yield stress at high temperatures.

中文翻译：

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从冲击压缩状态卸载时固体屈服应力的评估

摘要

提出，验证和认可了一种从测量的单位自由表面速度历史记录中评估冲击压缩材料屈服应力的简单方法。首次在升高的温度下通过实验评估了冲击压缩金属（铝）的动态屈服应力。发现其值低于室温下的值并且低于高温下动态屈服应力的初始值。