Dynamic pulling/pressing-twisting device for Hopkinson bar and use method of dynamic pulling/pressing-twisting device

The invention discloses a dynamic pulling/pressing-twisting device for a Hopkinson bar and a use method of the dynamic pulling/pressing-twisting device. The dynamic pulling/pressing-twisting device comprises a spiral base and a spiral column. Wherein the lead angle of the device is larger than the friction angle and smaller than 90 degrees, and different lead angles correspond to different pull/press-torsion ratios. In the using process of the device, the spiral base and the spiral column need to be assembled together and placed between the incident rod and the sample, and the incident rod, the pulling/pressing-twisting device, the sample and the transmission rod need to be firmly connected. The dynamic pulling/pressing-twisting device provided by the invention can be used for carrying out a pulling/pressing and twisting combined mechanical response test on a material, and the device is relatively simple and only needs to be improved on the basis of an existing Hopkinson bar. Therefore, the device is benefici