Effect prediction of stiffened-ring cylindrical shells subjected to drop mass impact

作     者：Sheng-zhuo Lu Jing-xin Ma Lan Liu Chun-long Xu Shi-bo Wu Wei-dong Chen Sheng-zhuo Lu;Jing-xin Ma;Lan Liu;Chun-long Xu;Shi-bo Wu;Wei-dong Chen

作者机构：College of Aerospace and Civil EngineeringHarbin Engineering UniversityHarbin150001PR China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2022年第18卷第2期

页      面：305-323页

核心收录：

学科分类：08[工学] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.51508123,named“Study on blast response of floating roof storage tank in material point method”) Natural Science Foundation of Heilongjiang Province,China(LH2019A008)to provide fund for conducting experiments and research.The authors would like to acknowledge Professor Wei Wang in Harbin Institute of Technology for instructions and help in experiment design 

主　　题：Drop mass impact Stiffened ring Cylindrical shell Impact load Dynamic response Parametric studies 

摘      要：This study focuses on the effect of lateral mass impact on ring-stiffened thin-walled cylindrical *** shells were fabricated to validate the numerical modeling and analytical techniques,and drop tests were performed using a rigid spherical ***,stiffened-ring cylindrical shells with various structural size parameters were simulated using ABAQUS *** relationships between the impact force,deformation displacement,and rebound velocity were established,on the basis of impact mechanics theory and simulation *** derived fitting functions to analyse the relationship between the maximum load and maximum displacement of ring-stiffened cylindrical shell under dynamic mass *** on the validation of the simulation model,the fitting function data were compared with the simulation results,and the functions showed a good ***,the parameters,mass ratio and stiffened-ring mass ratio were used to reflect the effect of the mass change in the ring-stiffened cylindrical ***,parametric studies on ring-stiffened cylindrical shell models were conducted to analyse the progressive impact responses.