대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제20권10호
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- Pages.3048-3057
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- 1996
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
Hertz 접촉하중하에서의 복수표면균열의 상호간섭
Mutual Interference of Two Surface Cracks under Hertzian Contact Loading
- Kim, Sang-Woo (Dept.of Mechanical Engineering, Engineering College, Kyungpook National University) ;
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Kim, Seock-Sam
(Dept.of Mechanical Engineering, Engineering College, Kyungpook National University)
- 발행 : 1996.10.01
초록
Analysis model containing two inclined surface cracks on semi-infinite elastic body is established and analyzed on the basis of linear fracture mechanics to examine mutual interference of two surface cracks. Muskhelishvili's complex stress functions are introduced and a set of singular integral equations is obtained for a dislocation density function. The stress intensity factors at crack tip are obtained by using the Gerasoulis'method. When two surface cracks are parallel and have the same length, the values of
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