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- 本田 尚
- 産安研
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- 山口 篤志
- 東電大
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- KOBAYASHI Albert S.
- ワシントン大学
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- RAMULU Mamidala
- ワシントン大学
書誌事項
- タイトル別名
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- 3623 Effect of Surface Roughness on Fatigue strength of Shot Peened Aluminum Alloy
抄録
The objective of this research was to determine the effect of surface roughness on fatigue strength in peened 7075-T7351 three point bend (TPB) specimens. Surface roughness of as-received and peened specimens (with four Almen scales (4, 8, 12, 16)) was measured with the laser microscope. All specimens were fatigued to failure at various stress levels, and a S-N diagram was constructed. The fatigue strength of 7075-T7351 was improved by shot peening, and the effect of shot peening on fatigue strength was inversely proportional to the shot intensity. Since the surface roughness in peened TPB specimens was proportional to shot intensity, the fatigue limits of peened specimens were evaluated by equivalent defect size √<area_R>, which is applied to irregularly shaped surface roughness. The fatigue limits evaluated by √<area_R> were agreed with experimental results well.
収録刊行物
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- 年次大会講演論文集
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年次大会講演論文集 2006.1 (0), 783-784, 2006
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282681037890816
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- NII論文ID
- 110006634643
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- ISSN
- 24331325
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可