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  • 标题:溶接止端部に存在する表面き裂の疲労き裂進展解析法に関する研究
  • 本地全文:下载
  • 作者:田中 智行 ; 高成田 浩輔 ; 岡田 裕
  • 期刊名称:日本船舶海洋工学会論文集
  • 印刷版ISSN:1880-3717
  • 电子版ISSN:1881-1760
  • 出版年度:2013
  • 卷号:17
  • 页码:93-106
  • DOI:10.2534/jjasnaoe.17.93
  • 语种:Japanese
  • 出版社:社団法人 日本船舶海洋工学会
  • 摘要:Welded joints are often applied to ships and ocean structures. Fatigue strength evaluation for the welded joints is important for assessing structural integrity of welded structures. In recent years, effective computational techniques for analyzing fracture mechanics problems and the crack propagation simulations have been proposed. In addition, the simulation for complex shaped geometry is easy to handle for the development of computational power. In this study, fatigue strength evaluation based on the crack propagation is examined. In the numerical examples, crack propagation analyses of surface crack in T-shaped welded joints are carried out for employing the computational techniques. Mk factors, crack paths and fatigue cycles are evaluated and are compablack with existing techniques. Effectiveness of the fatigue strength evaluation based on the new techniques is discussed.
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