DYMAT 2009
Volume 1, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 591 - 596
Section Experimental Techniques
Published online 15 September 2009
DYMAT 2009 (2009) 591-596
DOI: 10.1051/dymat/2009084

Study of stress wave propagation in SHPB with NHDMOC

M. Xu1, G. Zhang1, 2, Q. Cai1, R. Zhang1 and W. Tang1

1  Science College, National University of Defense Technology, 410073 Changsha, China
2  Beijing Special Engineering Design Institute (Mail Box 4702, 100028 Beijing, China)

Published online: 15 September 2009

In this paper the NHDMOC method, which permits studying stress wave propagation with one dimensional strain, was applied to study the one-dimensional stress wave propagation. In this paper, the ZWT nonlinear visco-elastic constitutive relationship with 7 parameters, NHDMOC, and corresponding equations were deduced. The equations were verified, comparing the elastic stress wave propagation in SHPB with, respectively, the elastic and the visco-elastic bar. Finally the dispersion and attenuation of stress wave in SHPB with visco-elastic bar was studied.

© EDP Sciences 2009