대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제20권7호
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- Pages.2167-2173
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- 1996
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
가중함수법을 이용한 두꺼운 배관의 응력강도계수 계산
Calculation of Stress Intensity Factors for a Thick Pipe Using Weight Function Method
- Lee, Hyeong-Yeon (Korea Atomic Energy Research Institute) ;
- Lee, Jae-Han (Korea Atomic Energy Research Institute) ;
- Yoo, Bong (Korea Atomic Energy Research Institute)
- 발행 : 1996.07.01
초록
An approximate weight function technique using the indirect boundary integral equation has been presented for the analysis of stress intensity foactors(SIFs) of a thick pipe. One-term boundary integral was introduced to represent the crack surface displacement field for the displacement based weight function technique. An explicit closed-form SIF solution applicable to symmetric cracked pipes without any modification of the solution including both circumferential and radial cracks has been derived. The necessary information in the analysis is two or three reference SIFs. In most cases the SIF solution were in good agreement with those available in the literature.
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