Slip Deformation around Mode I Fatigue Crack Tip during One Loading Cycle
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- MOTOYASHIKI Yasuko
- Inst. for Materials Tech., Univ. of Kassel
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- SUGETA Atsushi
- Dept of Mech. Eng. and Systems, Osaka Univ.
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- UEMATSU Yoshihiko
- Dept of Mech. Eng. and Systems, Osaka Univ.
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- MORIYAMA Takuya
- Osaka Univ.
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- JONO Masahiro
- Dept of Mech. Eng. and Systems, Osaka Univ.
Bibliographic Information
- Other Title
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- 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
- 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
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Description
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.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 53 (6), 633-638, 2004
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680395563136
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- NII Article ID
- 110006266297
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- NII Book ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BD2cXlvVelurc%3D
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- ISSN
- 18807488
- 05145163
- http://id.crossref.org/issn/05145163
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- NDL BIB ID
- 6998460
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed