Research on the Propagation Process of One-Dimensional Stress Wave inside the Projectile

2011 ◽  
Vol 130-134 ◽  
pp. 1775-1778
Author(s):  
Jun Li ◽  
Quan Li Ning ◽  
Chuang Liu

Taking aim at the phenomenon that the propagation process of one-dimensional stress wave in projectile will be exposed to reflection and transmission on the interface between mediums, based on wave impedance and limit yield of the different mediums inside some type projectile, using calculation and graphic method, analyses one-dimensional stress wave propagation in different mediums, educe ultimate loading action on projectile-loaded equipment.

2013 ◽  
Vol 444-445 ◽  
pp. 158-162
Author(s):  
Ming Li Xu ◽  
Guang Ying Zhang ◽  
Ruo Qi Zhang

In this paper the NHDMOC method which succeeded in 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 to NHDMOC, and corresponding equations were deduced The equations was verified from the comparison of elastic stress wave propagation in SHPB with elastic bar and visco-elastic bar respectively. Finally the dispersion and attenuation of stress wave in SHPB with visco-elastic bar was studied.


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