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Article

Experimental and Numerical Evaluation of Crack Arresting Capability Due to a Dimple

[+] Author and Article Information
Toshihiko Nishimura

Materials Research Section, Mitsubishi Heavy Industries, Ltd., Nagoya Aerospace Systems Works, 10, Oye-cho, Minato-ku, Nagoya 455-8515, Japane-mail: toshihiko_nishimura@mhi.co.jp

J. Eng. Mater. Technol 127(2), 244-250 (Apr 06, 2005) (7 pages) doi:10.1115/1.1865185 History: Received April 23, 2004; Revised December 27, 2004; Online April 06, 2005
Copyright © 2005 by ASME
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References

Figures

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Crack growth curves of flat-head dimpled specimens formed under three different dimpling forces
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Comparison of fatigue lives on smooth specimens with and without dimples
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Analysis model of a crack in an infinite sheet subjected to several pinching forces
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Stress intensity factors due to uniform pinching pressure on the crack line
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Stress intensity factors due to quadratic pinching pressure on the crack line
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Stress intensity factors due to 2 mm diam uniform pinching pressure
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Stress intensity factors due to 3 mm diam uniform pinching pressure
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Stress intensity factors due to 4 mm diam uniform pinching pressure
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Stress intensity factors due to 2 mm diam quadratic pinching pressure
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Stress intensity factors due to 3 mm diam quadratic pinching pressure
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Stress intensity factors due to 4 mm diam quadratic pinching pressure
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Crack growth curves of single or double side dimpled specimens
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Configuration of crack growth and fatigue life test specimens
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Measured dimple sizes versus applied forces
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Crack growth curves of stop-holed specimens
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Crack growth curves of dimpled specimens formed under three different dimpling forces
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Crack growth curves of dimpled specimens formed at two different crack lengths
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Crack growth curves of dimpled specimens formed at three different position under 7.4 kN dimpling force
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Crack growth curves of dimpled specimens formed at three different position under 9.8 kN dimpling force

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