弹丸对混凝土中钢筋结构侵彻效应研究  

Penetration effect of projectile into reinforced concrete targets

作　　者：穆朝民[1,2,3] 任辉启[3] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001 [3]总参工程兵科研三所,河南洛阳471023

出　　处：《兵器材料科学与工程》2011年第6期1-6,共6页Ordnance Material Science and Engineering

基　　金：国家自然基金(50874005);国家自然科学基金(10402041;10572134);教育部博士点基金(20070358073)

摘　　要：根据弹丸与钢筋直接发生作用的情况,提出弹丸侵彻钢筋混凝土的近似模型。利用该模型得到弹丸侵彻钢筋混凝土过程中弹丸的加速度时间历程。计算结果与实验结果符合较好。用该模型分析不同配筋结构、配筋尺寸、网眼尺寸对侵彻深度和侵彻过程的影响。结果表明,网眼间距和钢筋直径对侵彻深度影响较大,钢筋混凝土在钢筋层较集中的一侧抗侵彻能力较强。The approximate model of projectile penetrating into the reinforced concrete was established with consideration of direct interaction of projectile with steel bar. Using this model, time history of acceleration was obtained. Calculations are in agreement with experimental data. The model was used to analyze the effect of steel bar size, steel bar mesh size and steel bar configuration on penetration depth and penetration process. The results indicate that steel bar mesh size and steel bar size have an important influence on penetration depth. For reinforced concrete, the side with high reinforcement ratio has higher anti-penetration ability.

关 键 词：爆炸力学 侵彻 弹丸 钢筋混凝土 

分 类 号：O385[理学—流体力学]