Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 1995.04b
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- Pages.28-32
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- 1995
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- 2005-8446(pISSN)
The Behavior of Fatigue Crack Propagation by Position of Indentations
압흔가공위치에 따른 피로균열 전파거동
Abstract
This effective way for repairing a fatigue crack is making indetations around fatigue crack tip. In this paper, we performed fatigue test to investigate the optimal position of the indentations, and observed crack opening behavior at the same time. The indentation positions of specimens were on the crack tip, front and back of the crack tip. The results of the experiment showed taht it was veryeffective way to increase fatigue life that making indentations on the crack tip, and it was the optimal position that making indentations on the crack tip.
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