Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 12 Issue 6
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- Pages.1327-1334
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- 1988
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- 1225-5963(pISSN)
DOI QR Code
Behavior of fatigue crack propagation for the deep non-through radial holed notch specimens
深孔 非貫通노치材의 疲勞크랙 傳播擧動에 관한 硏究
- Published : 1988.11.01
Abstract
In this study rotating bending fatigue tests have been carried out with the deep non-through radial holed notch specimens of low carbon steels(SM 22C). It is investigated that the behaviors of surface and interior fatigue crack propagation and the variations of the shape of the cracked surface on the magnitude of bending stresses. The Obtained results are summarized as follows. (1) The relations between [Crack length] and [Cycle ratio] are expressed by following eq. in the 0.1~0.6 range of N/
본 연구에서는 회전굽힘응력하에서 비관통노치를 갖는 재료의 피로거동을 분 석하기 위하여 우선 시험편의 반지름에 해당한 심공노치를 갖는 시험편을 준비하고 이 시험편이 고, 중간, 저응력을 받는경우 작용응력의 대소에 의한 표면 및 내부크랙전파 특성과 함께 크랙면형상변화 관계를 검토하였다.
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