モードＩ疲労き裂先端近傍場での１サイクル中のすべり変形挙動

• 元屋敷 靖子

  Inst. for Materials Tech., Univ. of Kassel

• 菅田 淳

  大阪大学工学部機械システム工学専攻

• 植松 美彦

  大阪大学工学部機械システム工学専攻

• 森山 拓哉

  大阪大学大学院

• 城野 政弘

  大阪大学工学部機械システム工学専攻

書誌事項

タイトル別名

• Slip Deformation around Mode I Fatigue Crack Tip during One Loading Cycle
• モード 1 ヒロウ キレツ センタン キンボウバ デ ノ 1 サイクル チュウ ノ スベリ ヘンケイ キョドウ

抄録

Fatigue test was conducted on a grain-oriented 3% silicon iron under constant amplitude loading. Slip behavior around the fatigue crack tip was observed at the several levels of one loading cycle by means of Atomic Force Microscope (AFM) in order to elucidate the fatigue crack mechanisms. The quantitative evaluation of the fatigue crack growth behavior could be achieved by using the image processing technique. During loading, slips could begin to operate only when the applied stress reached to a certain level. Two preferential slip systems operated at the crack tip in this material. They moved alternately and caused the crack opening and propagation during loading. On the other hand, slips moved in the opposite direction to those during loading at the crack tip alternately and this led the crack closure during unloading. It can be said that the crack open plastically by the slip deformation after it open elastically.

収録刊行物

• 材料

  材料 53 (6), 633-638, 2004

  公益社団法人 日本材料学会

キーワード

• Atomic force microscope
• Mode I fatigue crack growth
• Slip deformation
• Image processing technique

詳細情報

• CRID: 1390282680395563136
• NII論文ID: 110006266297
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.53.633
• COI: 1:CAS:528:DC%2BD2cXlvVelurc%3D
• ISSN: 18807488
• ISSN: 05145163
• ISSN: http://id.crossref.org/issn/05145163
• NDL書誌ID: 6998460
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6998460
• 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