摘要
钢筋混凝土的侵彻和贯穿终点行为特性是防护工程和冲击工程领域内一个主要的研究课题。本文通过对钢筋混凝土侵彻和贯穿量纲分析,得到了弹体侵彻/贯穿钢筋混凝土缩比相似律,讨论了缩比相似律对建立工程计算公式的指导作用。在重点考虑钢筋在侵彻过程中的影响和缩比相似律的基础上,进行了1:1和1:2.5对比试验及1:2.5和1:4的缩比数值模拟计算,二者结果与缩比相似律吻合较好。最后,对钢筋混凝土侵彻和贯穿缩比关系进行了分析讨论。
The terminal effect in the reinforced concrete penetrated by a kinetic projectile is a main topic in the field of impact and defence engineering. The scale similarity law describing the penetration process in the reinforced concrete struck by a kinetic projectile was obtained by using the dimension analysis. Based on this scale similarity law, the effect of rebar in the reinforced concrete during the penetration process was analyzed and the approach to establish an empirical formula to calculate the penetration depth was discussed. By considering the rebar effect and the scale similarity law, the 1 ： 1 and 1 ： 2.5 scale experiments and the 1 ： 2.5 and 1 ： 4 scale numerical simulations were carried out. Comparing analyses show that the experimental results well accord with the scale similarity law. Finally, the scale relation for the penetration and perforation effects of reinforced concrete struck by the kinetic projectile was expounded.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2007年第3期276-280,共5页
Acta Armamentarii
基金
国家"九七三"计划项目(2000973)
关键词
爆炸力学
钢筋混凝土
侵彻
缩比律
缩比试验
数值模拟
mechanics of explosion
reinforced concrete
penetration
scale similarity law
scale experiment
numerical simulation
