爆炸冲击载荷作用下密加筋板塑性响应解析预报方法研究
Analytical prediction method for plastic response of multi-stiffened plates under the blast impact load
孟庆澳 1刘昆 1纵帅 1王正耀1
作者信息
- 1. 江苏科技大学船舶与海洋工程学院,镇江 212100
- 折叠
摘要
以钢质密加筋板为研究对象,研究了其在空气爆炸荷载作用下的爆炸响应.假设加筋板动力响应的变形模态与静力极限变形模态相同,采用能量原理和加筋板结构的塑性变形原理,分析得到了其在爆炸冲击载荷作用下塑性动力响应的运动控制方程.同时利用有限元软件ABAQUS对加筋板进行在空气爆炸荷载作用下的仿真分析,根据仿真分析结果对加筋板结构变形理论进行验证,为钢质加筋板的设计和抗冲击性能评估提供参考.
Abstract
In this paper,the explosion response of steel tightly reinforced plates under air explosion load is simu-lated.Assuming that the deformation mode of the dynamic response of the reinforced plate is the same as the stat-ic limit deformation mode,the energy principle and the plastic deformation principle of the reinforced plate struc-ture are used to analyze and obtain the motion control equations of its plastic dynamic response under the action of the blast impact load.Meanwhile,the simulation analysis of the stiffened plate under the air blast load is car-ried out by using the finite element software ABAQUS,and the deformation theory of the reinforced plate struc-ture is verified according to the simulation analysis results.A reference is provided for the design and impact re-sistance evaluation of steel stiffened plates.
关键词
密加筋板/冲击载荷/塑性变形/解析计算/数值仿真Key words
multi-stiffened plate/impact load/plastic deformation/analytical calculation/numerical simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据