한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제16권12호
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- Pages.143-151
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- 1999
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
표면미소균열의 프랙탈 특성을 이용한 피로강도설계에 관한 연구
A Study on the Design of Fatigue Strength using Fractal Character of Surface Micro-crack
초록
The shape of surface micro-crack is very irregular due to nonhomogeneous microstructure but is very important in respect to qualitative estimation of fatigue life. Fractal geomety can quantify the shape of surface mciro-crack. Fractal dimension is measured for surface micro-cracks with coast line and box counting method and estimates cycle ration in Al 2024-T3. The average fractal dimension
키워드