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RISSFatigue life prediction of fatigue fracture is very important problem. This paper is observed on the surface small crack growth behaviour of smooth specimen. This results were as follows. Surface small crack are created small crack of high density i...
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RISS 인기검색어
단조강(SF45A)재의 표면피로크랙 성장 거동에 관한 고찰 = A Study on Growth Behaviour of Surface Fatigue Crack in the Forging Steel(SF45A)
한글로보기https://www.riss.kr/link?id=A3011938
- 저자
- 발행기관
- 학술지명
- 권호사항
-
발행연도
1993
-
작성언어
Korean
-
KDC
051.000
-
자료형태
학술저널
-
수록면
41-47(7쪽)
- 제공처
-
0
상세조회 -
0
다운로드
부가정보
다국어 초록 (Multilingual Abstract)
Fatigue life prediction of fatigue fracture is very important problem.
This paper is observed on the surface small crack growth behaviour of smooth specimen. This results were as follows.
Surface small crack are created small crack of high density in about 50% of fatigue life, retarded crack growth due to crack coalescence in about 60% and 85%, and when distributed small cracks are growing, it was growthed few large cracks.
On the other hand, To analyze crack growth rate used stress intensity factor was difficult due to existed small crack stegnant range.
This paper is observed on the surface small crack growth behaviour of smooth specimen. This results were as follows.
Surface small crack are created small crack of high density in about 50% of fatigue life, retarded crack growth due to crack coalescence in about 60% and 85%, and when distributed small cracks are growing, it was growthed few large cracks.
On the other hand, To analyze crack growth rate used stress intensity factor was difficult due to existed small crack stegnant range.
Fatigue life prediction of fatigue fracture is very important problem.
This paper is observed on the surface small crack growth behaviour of smooth specimen. This results were as follows.
Surface small crack are created small crack of high density in about 50% of fatigue life, retarded crack growth due to crack coalescence in about 60% and 85%, and when distributed small cracks are growing, it was growthed few large cracks.
On the other hand, To analyze crack growth rate used stress intensity factor was difficult due to existed small crack stegnant range.
목차 (Table of Contents)
- 緖論
- 실험방법
- 1.실험재료 및 시험편
- 2.피로시험 방법 및 크랙 측정 방법
- 실험결과 및 고찰
- 緖論
- 실험방법
- 1.실험재료 및 시험편
- 2.피로시험 방법 및 크랙 측정 방법
- 실험결과 및 고찰
- 1.S-N선도 및 미소 크랙의 일반적 특성
- 2.미소분포크랙의 성장 거동
- 3.피로파괴수명비(N/Nf)에 대한 크랙길이(2a) 및 크랙성장속도(da/dN)의 관계
- 4.표면피로크랙성장속도(da/dN)와 응력확대계수(σa√πa의 관계
- 결론
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