TY - GEN
T1 - STUDY ON CONSTITUTIVE MODELS AND FAILURE MODELS IN NUMERICAL SIMULATION OF NATURAL FRAGMENTATION WARHEADS
AU - Sun, Yuhui
AU - Wang, Shushan
AU - Zhao, Chuan
AU - Jia, Xiyu
N1 - Publisher Copyright:
© Proceedings - 33rd International Symposium on Ballistics, BALLISTICS 2023. All rights reserved.
PY - 2023
Y1 - 2023
N2 - The constitutive model and failure model of shell steels determine the accuracy of numerical simulation of natural fragmentation warhead. The purpose of this study is to obtain the constitutive model and failure model. In this paper, three kinds of new shell steels (40SiMnX, 40SiMn2X, 40SiMn3X) are taken as research objects. The quasi-static tension test and Split Hopkinson Pressure Bar (SHPB) test were conducted to obtain the mechanical parameters of these new shell steels. The constitutive model and failure model were fitted according to these data. AUTODYN software was used to simulate the fragmentation of cylindrical warheads made of these three shell steels. In order to verify the reliability of constitutive model and failure model, static explosion tests were carried out. The results show that by obtaining the constitutive model and failure model, the fragmentation of warheads made of these new shell steels can be simulated well.
AB - The constitutive model and failure model of shell steels determine the accuracy of numerical simulation of natural fragmentation warhead. The purpose of this study is to obtain the constitutive model and failure model. In this paper, three kinds of new shell steels (40SiMnX, 40SiMn2X, 40SiMn3X) are taken as research objects. The quasi-static tension test and Split Hopkinson Pressure Bar (SHPB) test were conducted to obtain the mechanical parameters of these new shell steels. The constitutive model and failure model were fitted according to these data. AUTODYN software was used to simulate the fragmentation of cylindrical warheads made of these three shell steels. In order to verify the reliability of constitutive model and failure model, static explosion tests were carried out. The results show that by obtaining the constitutive model and failure model, the fragmentation of warheads made of these new shell steels can be simulated well.
UR - http://www.scopus.com/inward/record.url?scp=85178999870&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85178999870
T3 - Proceedings - 33rd International Symposium on Ballistics, BALLISTICS 2023
SP - 424
EP - 435
BT - Exterior Ballistics, Explosion Mechanics, Emerging Technologies, Launch Dynamics, Vulnerability and Survivability
A2 - Coghe, Frederik
PB - DEStech Publications
T2 - 33rd International Symposium on Ballistics, BALLISTICS 2023
Y2 - 16 October 2023 through 20 October 2023
ER -