研究材料动态卸载的一种实验方法

An experimental method for studying dynamic unloading property of material

在SHPB实验数据分析的基础上,提出了用柱锥形弹丸代替纯柱形弹丸研究材料的动态卸载。用所提出的方法对LF6铝材的动态加、卸载响应进行了实验研究,结果表明:柱锥形弹丸可以有效地延长入射脉冲的卸载段,可用来研究材料动态卸载行为。

A new method is proposed to study the unloading behavior of materials, with which the conventional cylinder projectiles in SHPB tests are replaced by cylindercone ones. With this method, the dynamic loading and unloading responses of the LF6 aluminum are investigated. The results show that the cylindercone projectile is an effective way to study the unloading behavior of materials, due to its ability to prolong the unloading phase of the incident impulse.