TY - JOUR
T1 - Research on effect of the pad material on stress of the explosive charge bottom during launching artillery ammunition
AU - Xu, F.
AU - Jiang, J. W.
AU - Xie, H. W.
N1 - Publisher Copyright:
© 2024 Institute of Physics Publishing. All rights reserved.
PY - 2024
Y1 - 2024
N2 - Using the generalized Maxwell visco-elastic constitutive model, the stress changes of the warhead explosive charge under high axial overload condition was simulated numerically by finite element method. The influence of Poisson's ratio and elastic modulus parameters of the pad material on the Von Mises stress of the explosive charge bottom was analyzed. The results show that when the elastic modulus of the pad is small, its Poisson's ratio is inversely proportional to the peak stress of the explosive charge bottom, while when the elastic modulus is large, its Poisson's ratio has almost no effect; with the increase of the elastic modulus of the pad, the stress of the explosive charge bottom first decreases and then increases; compared to metal materials and flexible materials, engineering plastic gaskets have a better effect on reducing the peak stress of the explosive charge bottom.
AB - Using the generalized Maxwell visco-elastic constitutive model, the stress changes of the warhead explosive charge under high axial overload condition was simulated numerically by finite element method. The influence of Poisson's ratio and elastic modulus parameters of the pad material on the Von Mises stress of the explosive charge bottom was analyzed. The results show that when the elastic modulus of the pad is small, its Poisson's ratio is inversely proportional to the peak stress of the explosive charge bottom, while when the elastic modulus is large, its Poisson's ratio has almost no effect; with the increase of the elastic modulus of the pad, the stress of the explosive charge bottom first decreases and then increases; compared to metal materials and flexible materials, engineering plastic gaskets have a better effect on reducing the peak stress of the explosive charge bottom.
UR - http://www.scopus.com/inward/record.url?scp=85214436194&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/2891/15/152018
DO - 10.1088/1742-6596/2891/15/152018
M3 - Conference article
AN - SCOPUS:85214436194
SN - 1742-6588
VL - 2891
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 15
M1 - 152018
T2 - 4th International Conference on Defence Technology, ICDT 2024
Y2 - 23 September 2024 through 26 September 2024
ER -