Uncertainty assessment of fatigue damage of welded ship structural joints

被引：19

作者：

Garbatov, Yordan ^{[1
]}

Soares, C. Guedes ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Tecn, Ctr Marine Technol & Engn CENTEC, P-1049001 Lisbon, Portugal

来源：

ENGINEERING STRUCTURES | 2012年 / 44卷

关键词：

Ship structures; Welded joints; Fatigue; S-N; Uncertainties; ANOVA;

D O I：

10.1016/j.engstruct.2012.06.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The work presented here studies the effect of various factors related to fatigue damage assessment of ship hull structures. Fatigue life is predicted by the S-N approach based on the long-term stress ranges, calculated using the spectral approach. The importance and interaction between various factors, including ship main characteristics, operational profile based on a mission or loading condition, wave climatic data represented by the use of different scatter diagrams, wave spectra, heading distributions, are analyzed. The random origin of mean stress effect, imperfection, weld shape improvement, hot-spot calculation and resulting a notch stress concentration factor to fatigue life of a but welded ship structural component have been taken into account. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：322 / 333

页数：12

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