International Journal of Precision Engineering and Manufacturing
- Volume 2 Issue 3
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- Pages.19-26
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- 2001
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- 2234-7593(pISSN)
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- 2005-4602(eISSN)
Analysis on Short Crack Growth Rate after Single Overload under Cyclic Bending Moment
- Song, Sam-Hong (Department of Mechanical Engineering, Korea University) ;
- Lee, Kyeong-Ro (Division of Machinery & Automobiles, Shinsung College) ;
- Kim, Amkee (Department of Mechanical Engineering, Kongju National University)
- Published : 2001.09.01
Abstract
In order to investigate the effect of single tensile overload on the short crack growth behavior under the out-of-plane cyclic bending moment, crack opening stresses were continuously measured by an elastic compliance method using strain gages. The characteristics of short crack growth after the single tensile overload are analyzed by the effective stress range ratio. Futhermore, the investigation was carried out with respect to various fatigue crack growth behaviors such as the plastic zone size effect on crack retardation, the retarded crack length and the number of cycles.
Keywords
- Short Crack;
- Fatigue Crack Growth;
- Overload;
- Stress Intensity Factor Range;
- Crack Opening Stress;
- Effective Stress Range Ratio