대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제18권12호
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- Pages.3136-3148
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- 1994
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- 1225-5963(pISSN)
DOI QR Code
열충격하에 있는 반타원균열에 대한 파괴건전성 평가
Integrity Evaluation of Semi-Elliptical Crack Under Thermal Shock
초록
This paper proposed the method of fracture integrity evaluation for semi-elliptical crack. Plane strain fracture toughnesses are used to compare with the thermal shock stress intensity factors for semi-elliptical crack obtained by Vainshtok weight function method. The method is applied to the finite Cr Mo V and 2.25Cr Mo steel plates with semi-elliptical crack under the thermal shock. For the purpose, tensile property and fracture toughness with respect to the temperature are measured. To verify the method, thermal shock experiments are carried. The theoretical predictions are in good agreement with the experiments.
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