A New Proposal for Retarding Fatigue Crack Reinitiation and Growth from Crack-Tip Introduced Stop-Drilled Hole by Providing Additional Holes
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- MURDANI Anggit
- Graduate School of Sci. and Tech., Univ. of the Ryukyus
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- MAKABE Chobin
- Mech. Systems Eng. Dept., Univ. of the Ryukyus
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- SAIMOTO Akihide
- Graduate School of Sci. and Tech., Nagasaki Univ.
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- MIYAZAKI Tatsujiro
- Mech. Systems Eng. Dept., Univ. of the Ryukyus
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- KONDOU Ryouji
- Mech. Systems Eng. Dept., Univ. of the Ryukyus
Bibliographic Information
- Other Title
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- 補助穴の加工によるストップホールからの疲労き裂発生の新抑制手法
- ホジョケツ ノ カコウ ニ ヨル ストップ ホール カラノ ヒロウ キレツ ハッセイ ノ シン ヨクセイ シュホウ
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Abstract
The purpose of present study is to propose a new technical method for retarding fatigue crack reinitiation and growth from the crack tip introduced-stop-drilled hole by providing additional holes. To demonstrate the validity of the proposal, analyses using software for two-dimensional elastic problems based on body-force method were done. Furthermore, a series of experiments was carried out for comparison. The calculated results showed that the additional holes give positive or negative effects on lowering stress concentration at the stop-drilled hole, which varies depending on combination of arrangement and size of both holes. Calking pin into the additional holes which yields internal pressure on the periphery, was found also advantageous for reducing stress concentration at the drilled hole. Finally, the calculated results showed relatively good agreement with the experimental results.
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 56 (12), 1139-1144, 2007
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
- 1390282680394220288
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- NII Article ID
- 130002085920
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 9310037
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed