李元龙, 王金相, 林尚剑, 唐奎, 陈兴旺, 黄瑞源. 水下爆炸作用下固支多层片组结构的塑性毁伤研究[J]. 工程力学, 2019, 36(8): 248-256. DOI: 10.6052/j.issn.1000-4750.2018.07.0369
引用本文: 李元龙, 王金相, 林尚剑, 唐奎, 陈兴旺, 黄瑞源. 水下爆炸作用下固支多层片组结构的塑性毁伤研究[J]. 工程力学, 2019, 36(8): 248-256. DOI: 10.6052/j.issn.1000-4750.2018.07.0369
LI Yuan-long, WANG Jin-xiang, LIN Shang-jian, TANG Kui, CHEN Xing-wang, HUANG Rui-yuan. STUDY ON PLASTIC DAMAGE OF CLAMPED MULTI-LAYER SHEET STRUCTURE CAUSED BY UNDERWATER EXPLOSION[J]. Engineering Mechanics, 2019, 36(8): 248-256. DOI: 10.6052/j.issn.1000-4750.2018.07.0369
Citation: LI Yuan-long, WANG Jin-xiang, LIN Shang-jian, TANG Kui, CHEN Xing-wang, HUANG Rui-yuan. STUDY ON PLASTIC DAMAGE OF CLAMPED MULTI-LAYER SHEET STRUCTURE CAUSED BY UNDERWATER EXPLOSION[J]. Engineering Mechanics, 2019, 36(8): 248-256. DOI: 10.6052/j.issn.1000-4750.2018.07.0369

水下爆炸作用下固支多层片组结构的塑性毁伤研究

STUDY ON PLASTIC DAMAGE OF CLAMPED MULTI-LAYER SHEET STRUCTURE CAUSED BY UNDERWATER EXPLOSION

  • 摘要: 为研究固支多层片组结构在水下爆炸作用下的毁伤行为,以能量法为基础,建立了典型多层片组结构在水下爆炸冲击波作用下的塑性响应模型,给出了一定爆炸载荷迎面作用下固支多层片组结构的塑性变形以及剪切断裂毁伤计算方法。利用AUTODYN仿真软件,对不同工况下固支多层片组结构的毁伤进行了仿真研究,并开展了水下爆炸毁伤试验,测试了水下爆炸冲击波参数和多层片组结构的毁伤情况。结合数值模拟和试验结果可知,该理论模型可以很好的预测多层片组结构的毁伤破坏情况,包括其塑性变形层数、剪切破坏层数和最大破坏深度,为水下多层防护结构抗冲击设计提供了一定的依据。

     

    Abstract: In order to study the damage behavior of a clamped multi-layer sheet structure caused by underwater explosion, a plastic response model for the typical multi-layer sheet structure due to shock waves of underwater explosion was established by an energy method. The calculation method of plastic deformation and shear fracture damage for clamped multi-layer sheet structure under certain frontal explosion loading is developed. Using the AUTODYN software, the numerical simulations of the damage of the clamped multi-layer sheet structure under different conditions were carried out. Also, the underwater explosion damage experiments were conducted and the shock-wave parameters of underwater explosion as well as the damage parameters of the multi-layer sheet structure were tested. According to the numerical simulation and experimental results, it can be found that the theoretical model can well predict the damage behavior of the multi-layer sheet structure, including the numbers of the plastic deformation layer and the shear failure layer as well as the maximum failure depth of the multilayer sheet structure. The work of this paper provides a certain basis for the anti-shock design of underwater multi-layer protective structures.

     

/

返回文章
返回