论文部分内容阅读
在小口径武器弹丸验收试验中发现,钢板的抗弹强度随着靶板温度的降低而升高。为了解释这一现象,曾在—20℃～+80℃的温度范围内,对各种结构钢靶极发射穿甲弹丸,以模拟钝头和尖头两种弹的侵彻行为。所测得的剩余速度和弹道极限速度值都表明与温度密切相关。对于尖头弹。板的防护强度随着温度的升高而降低。然而,发射钝头弹,其防护强度与温度的关系则成正斜率变化。这种热效应可通过分析材料对摆锤冲击试验的响应得到解释。
In the small-caliber weapon projectile acceptance test, it was found that the rebound strength of the steel plate increases with the decrease of the target plate temperature. To explain this phenomenon, armor projectiles were shot on a variety of structural steel targets at a temperature range of -20 ° C to + 80 ° C to simulate the penetration behavior of both blunt and pointed bombs. The measured residual velocity and ballistic limit velocity values indicate that they are closely related to temperature. For the pointed bomb. The protective strength of the board decreases with increasing temperature. However, launch blunt bombs, the protective strength and temperature of the relationship is a positive slope change. This thermal effect can be explained by analyzing the response of the material to the pendulum impact test.