弹道学报2017，Vol.29Issue(2)：26-33,8.
离散元模拟钢筋混凝土靶板贯穿响应研究
Study on Perforation Responses of Reinforced Concrete Slab by Discrete Modeling
摘要
Abstract
A new distribution scheme of Gauss integration point and a new rebar-matrix interaction model were presented.A numerical model for rebar concrete (RC)plate perforation was established based on lattice discrete particle model(LDPM).The compressive strength of 48 MPa and 140 MPa of RC plates perforation was simulated respectively.The proposed model was validated for the perforation simulation in terms of residual velocity and damage mode.Under the conditions of 140 MPa compressive strength,the rebar of reinforced concrete has greater resistance on the impact projectile compared to the conditions of 48 MPa compressive strength.Numerical results indicate that the residual velocity decreases by 12 m/s and 45 m/s while projectile impacting one rebar or two rebar joints.It can significantly decrease the projectile residual-velocity to increase the rebar diameter while the impact position is at the junction of two rebars.关键词
钢筋混凝土/弹着点/贯穿/离散单元Key words
reinforced concrete/impact point/perforation/discrete element分类
数理科学引用本文复制引用
冯君,孙巍巍,张武满,刘志林,王晓鸣..离散元模拟钢筋混凝土靶板贯穿响应研究[J].弹道学报,2017,29(2):26-33,8.基金项目
国家自然科学基金项目(11602111,51278250) （11602111,51278250）
中央高校基本科研业务费专项资金资助(30917011343) （30917011343）
