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<p>An idealized explicit finite element method is efficient to analyze mechanical behaviors of large-scale welded structures. A numerical model combining Norton’s law, ductile exhaustion law, and Manson-Coffin’s law was developed for the prediction of creep-fatigue life of a welded pipe system under complex bending-torsion loading. Its validity was verified by comparing predicted creep-fatigue life with the experimental one.</p>

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Creep-fatigue life prediction of a welded pipe structure under complex bending-torsion loading

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月27日

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  • Masakazu Shibahara,
  • Kazuki Ikushima,
  • Yuji Kitani,
  • Masayuki Arai,
  • Hidetaka Nishida,
  • Ninshu Ma

摘要

An idealized explicit finite element method is efficient to analyze mechanical behaviors of large-scale welded structures. A numerical model combining Norton’s law, ductile exhaustion law, and Manson-Coffin’s law was developed for the prediction of creep-fatigue life of a welded pipe system under complex bending-torsion loading. Its validity was verified by comparing predicted creep-fatigue life with the experimental one.