不規則に変動する軸力とねじりの組合せ応力における疲労強度評価

• 松原 剛

  川崎重工業（株） 技術研究所

• 林田 篤

  川崎重工業（株） 航空宇宙カンパニー

書誌事項

タイトル別名

• Fatigue Strength Estimation under Irregular Variable Combined Axial and Share Stresses
• フキソク ニ ヘンドウ スル ジクリョク ト ネジリ ノ クミアワセ オウリョク ニ オケル ヒロウ キョウド ヒョウカ

抄録

The Wang-Brown or Dong methods were incorporated into the multiaxial high cycle constant-amplitude fatigue life prediction method proposed by the authors in the previous papers, so as to predict multiaxial high cycle irregular variable amplitude fatigue life. Multiaxial high cycle fatigue tests were performed using SNCM439 steel for verification. The stress amplitude, mean stress, and principal stress direction change in the stress waveform of the tests. The fatigue lives predicted by the Wang-Brown method were about three times longer than the experimental values. By contrast, the Dong method predicted fatigue lives that were about one-third shorter than experiments. This is thought to be because the stress range of each path is calculated to be smaller by the Wang-Brown method and larger by the Dong method in the stress waveform converted into Euclidean coordinates.

収録刊行物

• 材料

  材料 70 (3), 250-257, 2021-03-15

  公益社団法人 日本材料学会

キーワード

• Fatigue life, High cycle, Multiaxial fatigue, Life prediction, Variable stress, Principal stress direction

詳細情報

• CRID: 1390005966211152384
• NII論文ID: 130008000642
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.70.250
• ISSN: 18807488
• ISSN: 05145163
• NDL書誌ID: 031350385
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I031350385
• Web Site: https://www.jstage.jst.go.jp/article/jsms/70/3/70_250/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可