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The composite damage effects of explosion after penetration in plain concrete targets
International Journal of Impact Engineering ( IF 5.1 ) Pub Date : 2021-03-13 , DOI: 10.1016/j.ijimpeng.2021.103862
Shanzheng SUN , Hao LU , Songlin YUE , Hao GENG , Zhongzheng JIANG

To investigate the composite damage effects of explosion based on initial damage caused by penetration, a series of penetration and explosion tests were conducted on plain concrete at different impact velocities, charge masses, and charge locations. Before that, a dimensional analysis of explosion effects after penetration in a concrete slab was undertaken, in which the composite damage effects can be characterized by a dimensionless explosion coefficient and a dimensionless impact coefficient. In addition, the initial damage caused by penetration can be characterized by the dimensionless impact coefficient. Based on the experimental data and theoretical analysis, the physical relationships between the composite damage effects of explosion and the initial damage effects of penetration were revealed, and the regression equation of the final crater depth and radius caused by explosion was obtained, which is described by the dimensionless impact coefficient and the dimensionless explosion coefficient.



中文翻译:

普通混凝土靶中穿透后爆炸的复合破坏效应

为了研究基于穿透造成的初始破坏的爆炸的复合破坏效果,在不同的冲击速度,装药质量和装药位置对普通混凝土进行了一系列的穿透和爆炸测试。在此之前,进行了混凝土板渗透后爆炸效应的尺寸分析,其中复合损伤效应可以用无因次爆炸系数和无因次冲击系数来表征。另外,由渗透引起的初始损伤可以通过无因次冲击系数来表征。根据实验数据和理论分析,揭示了爆炸的复合破坏效应与穿透的初始破坏效应之间的物理关系,

更新日期:2021-03-25
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