US 12,313,605 B1
Single-pulse experimentation device based on hopkinson pressure bar and experimentation method
Nuwen Xu, Chengdu (CN); Zhuang Li, Chengdu (CN); Yong Xia, Chengdu (CN); Biao Li, Chengdu (CN); Peiwei Xiao, Chengdu (CN); Haoyu Mao, Chengdu (CN); Jun Liu, Chengdu (CN); Feng Gao, Chengdu (CN); and Yuepeng Sun, Chengdu (CN)
Assigned to SICHUAN UNIVERSITY, Chengdu (CN)
Filed by SICHUAN UNIVERSITY, Chengdu (CN)
Filed on Sep. 12, 2024, as Appl. No. 18/882,860.
Application 18/882,860 is a continuation of application No. PCT/CN2024/093482, filed on May 15, 2024.
Claims priority of application No. 202410592702.7 (CN), filed on May 14, 2024.
Int. Cl. G01N 3/30 (2006.01); G01N 3/02 (2006.01); G01N 3/307 (2006.01)
CPC G01N 3/307 (2013.01) [G01N 2203/001 (2013.01); G01N 2203/0019 (2013.01); G01N 2203/0035 (2013.01); G01N 2203/0048 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A single-pulse experimentation device based on a Hopkinson pressure bar, wherein the single-pulse experimentation device comprises an experimentation assembly and a pulse controlling assembly, the experimentation assembly comprises a power generating mechanism, an incident bar and a transmission bar, a space between the incident bar and the transmission bar is for accommodating a sample, and the sample is for bearing and transferring a dynamic-loading compressional wave transmitted by the incident bar;
the pulse controlling assembly comprises:
a stretching assembly that is internally hollow and is connected to the transmission bar; and
an elastic assembly and a gear regulating mechanism that are located inside the stretching assembly and are connected to corresponding positions of the stretching assembly, respectively;
wherein the gear regulating mechanism is configured for driving the stretching assembly to switch between a first position state and a second position state; and
when the stretching assembly has received the dynamic-loading compressional wave propagated by the transmission bar for a first time, the stretching assembly drives the gear regulating mechanism to drive the stretching assembly to switch from the first position state to the second position state, to, in a direction of transmission of the dynamic-loading compressional wave, by using the elastic assembly, drive the stretching assembly to contract, so that the transmission bar and the sample are disengaged from contacting.