한국공작기계학회:학술대회논문집 (Proceedings of the Korean Society of Machine Tool Engineers Conference)
- 한국공작기계학회 1999년도 춘계학술대회 논문집
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- Pages.163-169
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- 1999
얇은 두께로 된 U 전열관의 잔류응력 및 부하응력 해석
Analysis of Residual and Applied Stresses of Thin-walled U tubes
초록
Residual stresses causing stress corrosion cracking (SCC) of thin-walled steam generator U tubes were investigated. The residual stresses were measured by hole drilling methods, and the applied stresses resulting from the internal pressure and the temperature gradient in the steam generator were estimated theoretically. In U-bent regions, the residual stresses at extrados were induced with compressive stress(-), and its maximum value reached -319MPa in axial direction at
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