摘要
为研究钢结构箱体在内爆作用下毁伤破坏效应,对TNT在钢结构箱体内部爆炸进行试验研究.试验中采用常用4舱室结构为研究对象,通过改变装药量研究钢结构箱体的毁伤破坏,得到了不同装药量情况下箱体结构的破坏毁伤程度及破坏特征.研究结果表明:钢板箱体在结构内爆炸荷载作用下,随着装药量的增加,毁伤程度逐渐增加,完全密闭舱室的顶盖钢板由轻微隆起逐渐增加为加筋端部出现裂口,破坏模式由起爆舱室内内侧隔板及顶盖钢板轻微变形逐渐增加为明显变形及自由通道一侧隆起加剧,直至顶盖加筋处出现裂口及内侧隔板顶部断裂破坏.
In order to research the damage effect of steel box under internal blast loading,experiments were carried out to explore the damage of steel box under different TNT charge masses.The common four-compartment steel boxes were used as research objects.By changing TNT charge masses,different damage modes and damage characteristics were observed.The results show that steel box damage level increases as the charge mass increases under the internal blast loading,the steel plate on the roof of the fully enclosed compartment gradually increases from a slight uplift to a crack at the end of the reinforcement,the failure mode gradually increases from slight deformation of inner diaphragm and the steel plate of the roof cover to obvious deformation and the increase of one side uplift of the free passage,and cracks at the reinforced part of the roof and fracture of the top of inner diaphragm are formed at last.
作者
汪维
刘光昆
汪琴
刘瑞朝
吴飚
黄家蓉
WANG Wei;LIU Guang-kun;WANG Qin;LIU Rui-chao;WU Biao;HUANG Jia-rong(Key Laboratory of Impact and Safety Engineering,Ministry of Education,Ningbo University,Ningbo,Zhejiang315211,China; Research Institute for National Defense Engineering of Academy of Military Sciences PLA,Luoyang,He’nan471023,China; Institute of Engineering Safety and Disaster Prevention,Hohai University,Nanjing,Jiangsu210098,China; Jiujiang Vocational Univerisity,Jiujiang,Jiangxi332000,China)
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2019年第12期1225-1231,共7页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(11302261,11972201)
