EXPERIMENTAL STUDY ON THE DAMAGE EVOLUTION OF POLYMER BONDED EXPLOSIVES MATERIAL USING DIGITAL SPECKLE CORRELATION METHOD
Considering with the spatial characteristics of concentrated deformation field caused by the micro-cracks concentration and localization in PBXS material, a new damage variable is defined based on the standard deviation of the strain fields of polymer bonded explosives (PBXs) specimen surface during loading. When digital speckle correlation method (DSCM) is used to measure the deformation fields of PBXS specimen, the damage variable definition in this paper takes great advantages on damage measurement of PBXS. Using the new methods, the damage of PBX would be measured for the whole loading process and the experiment is easy to be implemented. The validity of the proposed damage variable is verified by the experimental results on column-shaped PBX specimen subject to uniaxial compression.
polymer bonded explosives (pbxs) damage evolution digital speckle correlation method (dscm) acoustic emission (ae)
Xian Wang Shaopeng Ma Zhongbin Zhou Pengwan Chen
State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology, Beijing 10 School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
国际会议
南京
英文
43-46
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）