書誌事項
- タイトル別名
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- Investigation of Propagation and Interference Behavior of Surface Fatigue Cracks under Rotating Bending Fatigue by .MU.CT Technique with Synchrotron Radiation
- カイテン マゲ ヒロウ ジョウケン カ ニ オケル フクスウ キレツ ノ シンテン カンショウ キョドウ ノ ホウシャコウ ミュー CT オ モチイタ ヒョウカ
- Investigation of Propagation and Interference Behavior of Surface Fatigue Cracks under Rotating Bending Fatigue by μCT Technique with Synchrotron Radiation
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説明
Fatigue crack propagation behavior is essential to investigate the mechanism of fatigue fracture. The replication technique has been used to observe the behavior on the surface of various materials; however, the technique does not provide the information on the shape of cracks inside materials. In the present study, the authors have attempted micro computed tomography (μCT) with synchrotron radiation of SPring-8 to observe the cracks inside the specimens. Cracks were introduced through rotating-bending fatigue loading on aircraft aluminum alloy A7050-T7451 specimens. The crack images were intermittently visualized by μCT during the propagation. The interference and coalescence of the two fatigue cracks were evaluated, which were closely located in a plane or parallel planes perpendicular to the axis of each specimen. Fatigue crack propagation rates were calculated using the pairs of crack images with different fatigue cycles. Stress intensity factors were estimated by the Paris's law with the calculated crack propagation rate, which revealed that the high points in stress intensity factor corresponded with those by other researchers for the axial loading of plate specimens.
収録刊行物
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- 材料
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材料 58 (12), 975-981, 2009
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282680396321536
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- NII論文ID
- 130000150129
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 10530443
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
