刻槽弹体旋转侵彻混凝土效应试验研究

Experimental Investigation on Penetration of Grooved Projectiles into Concrete Targets

为研究刻槽弹体旋转侵彻混凝土靶的侵彻性能,利用14.5 mm滑膛枪发射平台,进行了非旋转的卵形弹体与刻槽弹体侵彻砂浆混凝土靶试验研究,同时利用14.5 mm线膛枪发射平台,进行了旋转的卵形弹体和刻槽弹体侵彻砂浆混凝土靶和石灰石混凝土靶试验研究。两种发射平台对比试验结果表明:采用卵形弹体头部刻槽和旋转侵彻的方法,使对混凝土目标的破坏从单一的挤压破坏变为挤压与环向剪切联合作用的破坏模式,达到了减少轴向阻力和提高侵彻威力的作用;相比于砂浆混凝土靶,石灰石混凝土靶具有较强的抗侵彻能力。

In order to study the performance of grooved projectiles rotarily penetrating into concrete tar- get, the penetration experiments of non-rotating oral projectiles and non-rotating grooved projectiles a- gainst the mortar concrete targets were conducted with the use of 14.5 mm smooth-bore gun. And the penetration experiments of rotating oral projectiles and rotating grooved projectiles against the mortar and limestone concrete targets were conducted with the use of 14.5 mm rifled bore gun. The results show that the grooved projectile and rotating penetration can be used to change the concrete failure from a single ax- ial compression to the combined effects of axial compression and circumferential shear. The axial resis- tance of projectile becomes lower and the penetration power of the projectile gets stronger. The anti-pene- tration capability of limestone concrete target is stronger than that of mortar concrete target.