Numerical Simulation of Shock Initiation of Shielded Composition B Impacted by Tungsten Alloy Fragment
TONG Yuan 1， LI Degui 1， NIE Yuan 1， JIN Guiyu 2， CHI Dejian 2
1. Institute of Systems Engineering， China Academy of Engineering Physics， Mianyang 621999， Sichuan， China；
2. Shanghai Electro-Mechanical Engineering Institute， Shanghai 201109， China
Abstract：Using AUTODYN software to carry out numerical simulation, the “up-down” method was used to calculate the initiation velocity threshold of composition B shielded by 6 mm/9 mm thick 45 steel cover plate impacted by 10 g tungsten alloy spherical fragment. According to the Richard M. Lloyd and Jacobs-Roslund model equations, engineering calculations under the same target conditions were carried out. The results show that the velocity threshold of 10 g tungsten alloy spherical fragment to detonate 6 mm/9 mm thick 45 steel shielded composition B is 2 100 m/s and 2 200 m/s respectively, and the calculated results based on Jacobs-Roslund model equation are more consistent with the numerical simulation results. The conclusion of this paper can provide a basis for the lethality design and assessment of anti-missile warhead.
仝远, 李德贵, 聂源, 金桂玉, 迟德建. 钨合金破片对屏蔽B炸药撞击起爆数值模拟[J]. 空天防御, 2021, 4(3): 70-75.
TONG Yuan, LI Degui, NIE Yuan, JIN Guiyu, CHI Dejian. Numerical Simulation of Shock Initiation of Shielded Composition B Impacted by Tungsten Alloy Fragment. Air & Space Defense, 2021, 4(3): 70-75.
