变截面弹丸在分离式Hopkinson压杆中的应用

Application of Cone-Cylinder Projectiles in Split Hopkinson Pressure Bar Test

本文在分离式Hopkinson压杆系统中,探索了应用变截面锥形弹丸实现常应变率力学性能测试的实验方法,以及在较高应变率下实现动态卸载以获取材料的动态弹性模量的可行性.

The ConeCylinder Projectiles are applied in the split Hopkinson pressure bar experiments. Based on adopting proper shapes of ConeCylinder Projectiles, the characteristics of material at constant high strain rate are obtained, and the dynamic unloading characteristics of material at high stain rate are obtained, too.