高压物理学报2011，Vol.25Issue(4)：370-378,9.
钢筋混凝土靶板在弹丸冲击及爆炸载荷下响应的数值模拟
Numerical Simulation of the Response of Reinforced Concrete Slabs to Projectile Impact or Explosive Loading
孟阳 1文鹤鸣1
作者信息
- 1. 中国科学技术大学中国科学院材料力学行为与设计重点实验室,安徽合肥230027
- 折叠
摘要
Abstract
Numerical simulation is first conducted herein of the perforation of reinforced concrete slabs by an ogival-nosed projectile using LS-DYNA. The triaxial test data reported in this paper for the 48MPa concrete are used to determine the values of the parameters employed in the Holmquist-Johnson-Cook （HJC） model. It is shown that the numerical simulations correlate well with the experimental observations in terms of ballistic limit, residual velocity, impact crater, penetration tunnel and scabbing crater. The response of reinforced concrete slabs to explosive loading is also studied numeri- cally by the fluid-solid coupled method of LS-DYNA. The simulation reproduces the transient process of the shock wave and the main rupture process of the slabs. The numerically obtained pressure-time histories are found to be in reasonable agreement with those predicted by the empirical equations;the failure patterns obtained by the numerical simulation are found to be similar to those obtained experimentally.关键词
钢筋混凝土靶板/弹丸撞击/爆炸加载/数值模拟Key words
reinforced concrete slab/projectile impact/explosive loading/numerical simulation分类
数理科学引用本文复制引用
孟阳,文鹤鸣..钢筋混凝土靶板在弹丸冲击及爆炸载荷下响应的数值模拟[J].高压物理学报,2011,25(4):370-378,9.
