変動温度下の高温疲労き裂伝ぱ

• 大谷 隆一

• 北村 隆行

• 多田 直哉

書誌事項

タイトル別名

• High-temperature fatigue crack propagation under cyclic temperature.
• ヘンドウ オンドカ ノ コウオン ヒロウ キレツ デンパ

抄録

In order to investigate crack propagation behavior of thermal fatigue on the basis of non-linear fracture mechanics, crack propagation tests were conducted for isothermal fatigue at several temperatures and for cyclic temperature fatigue. The results obtained were summarized as follows. (1) The fracture mechanics laws in isothermal fatigue dl/dN-ΔJ_f and dl/dN-ΔJ_c relations where dl/dN was crack propagation rate, ΔJ_f was fatigue J-integral range and was ΔJ_c was creep J-integral range) showed little dependence on temperature. (2) A simple evaluation method of the values of ΔJ_f and ΔJ_c in thermal fatigue was proposed. (3) Crack propagation under cyclic temperature could be divided into two types which were cycle-dependent and time-dependent. dl/dN had good correlations with ΔJ_f and ΔJ_c for each type, respectively. (4) The transient condition between two types was given by a function of ΔJ_f and ΔJ_c. (5) The same fracture mechanics laws were obtained in isothermal and cyclic temperature fatigue.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 53 (490), 1030-1036, 1987

  一般社団法人 日本機械学会

キーワード

• Thermal Fatigue
• Cyclic Temperature Fatigue
• Crack Propagation
• Fracture Mechanics
• J-Integral

詳細情報

• CRID: 1390001204477076736
• NII論文ID: 110002377295
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.53.1030
• ISSN: 18848338
• ISSN: 03875008
• NDL書誌ID: 3126024
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3126024
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/53/490/53_490_1030/_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