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Residual strength assessment of damaged submarine structure
Author(s): 
Pages: 118-126
Year: Issue:  1
Journal: Journal of Ship Mechanics

Keyword:  潜艇结构剩余强度涡形凹陷应力稳定性MSC/NASTRAN;
Abstract: 为探讨潜艇在耐压船体结构出现损伤变形,但尚未破损进水的状态下,能安全下潜的最大深度,文章提出了受损伤潜艇结构的“剩余强度”概念.以出现较大损伤变形的环肋圆柱壳舱段结构为研究对象,以“涡形凹陷”作为损伤变形的典型形状,考察这种结构在静水外压作用下的应力分布和失稳临界压力,与相应的完好状态(设计状态)的环肋圆柱壳进行比较,分析损伤凹陷位置和幅度的变化对受损伤的耐压船体所能承受的最大载荷的影响规律,提出...
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