引張残留応力場にある溶接継手の設計疲労き裂伝ぱ曲線

• 太田昭彦

  金属材料技術研究所

• 前田 芳夫

  金属材料技術研究所

• 小菅 通雄

  金属材料技術研究所

• 町田 進

  東京大学

• 吉成 仁志

  東京大学

書誌事項

タイトル別名

• Design Curve for Fatigue Crack Propagation in Weldments Containing Tensile Residual Stresses

抄録

Fatigue crack propagation properties of welded joints were investigated for five types of steels, SB42,SM50B, SPV50,HT80 and SUS304. Propagation data for all materials were found to be coinciding with each other. This was due to the presence of tensile residual stress around the crack tip which made the crack surfaces to open. A total of 3,335 data plots were used to fit a regression curve. For design purpose, it is advisable to adopt the fatigue crack propagation curve at 99.5% confidence limit. It is also shown that the proposed curve is applicable to random loadings.

収録刊行物

• 溶論

  溶論 7 391-396, 1989

  社団法人溶接学会

キーワード

• Design
• Fatigue crack
• Welded joint
• Fatigue threshold
• Random loadings
• Steel

詳細情報

• CRID: 1571980077300488064
• NII論文ID: 110003422989
• NII書誌ID: AN00246019
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
  • CiNii Articles