花岗岩块石浆砌结构抗弹丸斜侵彻/冲击性能实验研究  

Experimental Study of Resistance Performance in Projectile Oblique Penetration/Impact for a Granite-reinforced Concrete Composite Structure

作　　者：杨建超[1] 吴飚[1] 金栋梁[1] 

机构地区：[1]总参工程兵科研三所,河南洛阳471023

出　　处：《实验力学》2009年第5期467-472,共6页Journal of Experimental Mechanics

摘　　要：通过实弹射击试验,研究了花岗岩-钢筋混凝土复合靶板的抗侵彻/冲击性能。结果表明,该靶板具有较好的抗侵彻/冲击能力。与同等厚度的普通钢筋混凝土靶板相比,在射弹特性和撞击条件相同的情况下,该结构抗侵彻/冲击能力明显增强。对薄靶板而言,冲剪破坏为主要的破坏形式,增强抗剪能力,能够提高靶板抗侵彻/冲击能力。当弹体速度不高时,局部作用和结构整体响应之间一般有很强的耦合。该花岗岩-钢筋混凝土靶板局部既有一定的刚度,整体也具有一定的塑性,因此具有较好的抗弹体侵彻/冲击能力。这种结构施工简单,取材方便,造价相对低廉,具有一定的应用前景。Resistance performance of oblique penetration/impact for a granite-reinforced concrete composite target was experimentally studied based on ball firing. Results show that this type of target has good anti-penetration/impact performance. Comparing with common reinforced concrete target with the same thickness and under the conditions of same projectile shooting characteristics and same impact parameters, the projectile penetration depth into this type of target is shorter, which indicates that it has stronger anti-penetration/impact performance. Punching shear damage is the main damage for thin target slab. Therefore, reinforcement of the ability of resisting punching shear damage will increase the capacity of resisting projectile penetration. The local action and the whole response of a target have strong coupling, when projectile impacting speed is not high. This type of granitereinforced concrete composite structure has both local rigidity and whole plasticity, which explain the fine ability to resisting projectile penetration. This structure have good application foreground for simple construction, easy material availability and low cost.

关 键 词：防护工程 遮弹层 花岗岩 斜侵彻 

分 类 号：O385[理学—流体力学]