The Ultimate Strength of Ring Stiffened Cylindrical Shell and Its Influence Factors
作者: XIONG Zhixin1HUI Hanju1*HUANG Zhiquan2
刊名: Journal of Theoretical and Applied Sciences, 2020, Vol.3
来源数据库: eScience Publisher
DOI: 10.28933/jtas-2020-01-2805
关键词: Ring-stiffened cylinderUltimate strengthInitial imperfectionMode
原始语种摘要: Calculating the modes of cylindrical shell, then embed them into ideal perfect cylindrical pressure-resistant shell as the initial geometric imperfections to form the modal. According to the characteristics of each mode, the first 30 modes can be classified into four types, and it is found that the mode of the first type is the worst defect form. By calculation, the cylinder shell has the minimum ultimate strength when the 23rd mode happened. The sensitivity analysis of cylindrical shells with initial geometric defects shows that the critical buckling load has approximate linear relationship with different thickness radius ratio and defect amplitude. Six cylindrical shells of different materials are selected for research, and it is found that although the modal orders of the worst...
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  • Shell 护罩
  • shell 贝壳
  • geometric 凡何
  • worst 最坏的
  • cylinder 圆柱
  • modal 模态
  • classified 保密的
  • approximate 近似的
  • stiffened 加强的
  • embed 成层