Centrifuge Model Tests and Numerical Simulations of the Impact of Underwater Explosion on an Air-Backed Steel Plate

作     者：Zhijie Huang Zuyu Chen Xiaodan Ren Jing Hu Xuedong Zhang Lu Hai 

作者机构：MOE Key Laboratory of Soft Soils and Geoenvironmental EngineeringZhejiang UniversityHangzhou310058China Institute of Geotechnical EngineeringZhejiang UniversityHangzhou310058China China Institute of Water Resources and Hydropower ResearchBeijing100048China School of Civil EngineeringTongji UniversityShanghai200092China. 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2019年第118卷第1期

页      面：139-155页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：The authors would like to thank Prof.Guowei Ma Prof.Fang Wang and Prof.Hongyuan Zhou for critically reading and revising the manuscript as well as for helpful discussions.This study has been financially supported by the State Key Program of National Natural Science Foundation of China(Grant No.51339006) 

主　　题：Centrifuge model tests numerical simulation underwater explosion shock wave bubble oscillation. 

摘      要：Damage and threats to hydraulic and submarine structures by underwater explosions(UNDEXs)have raised much *** centrifuge model test,compared to prototype test,is a more promising way to examine the problem while reducing cost and satisfying the similitude requirements of both Mach and Froude numbers *** study used a systematic approach employing centrifuge model tests and numerical simulations to investigate the effects of UNDEXs on an air-backed steel *** methodical centrifuge tests of UNDEXs were *** shock wave pressure,bubble oscillation pressure,acceleration and the strain of the air-backed steel plate were recorded and compared with numerical studies using the finite element analysis(FEA)commercial software *** implementing empirically derived and physically measured pressures into the numerical models,the effects of the shock wave and bubble oscillation on the steel plate were ***,the numerical results were in agreement with the experimental *** results showed that the peak pressure of an UNDEX has a significant effect on the peak acceleration of the steel plate and that the impulse of the UNDEX pressure governs the peak strain of the steel plate.