热冲击对钢质药筒力学性能影响分析

针对传统研究忽略温度影响的问题,研究高压和高温载荷对焊接钢质药筒力学性能的影响.使用LS-DYNA软件,建立焊接药筒的仿真模型,分析弹丸发射过程中热冲击对钢质药筒的影响.结果表明:温度对药筒残余应力的影响较大,尤其是对筒体,并对抽壳力也有一定的影响,使抽壳力增大约16％.该研究结果对钢质药筒研究有一定参考价值.

Influence Analysis of Heat Shock on Mechanical Properties of Steel Cartridge Case

For ignoring the influence of temperature on traditional research, this paper study the influence of high-pressure and high-temperature loads on the mechanical properties of welded steel cartridges. Using LS-DYNA software, a simulation model of the welding cartridge was established to analyze the impact of thermal shock on the steel cartridge during projectile launching. The results show that the temperature has a great influence on the residual stress of the cartridge, especially on the cartridge body, and also affects the shell release force, that increased about 16％. The results of this paper have important guiding significance for the steel cartridge case.