중수로 피더관 국부 감육의 응력집중계수에 미치는 굽힘 각도의 영향 고찰

In this study, stress concentration factors of the various lcoal wall thinnings in CANDU feeder pipe are calculated by using finite element analysis. In particular, the effect of bending angle on the stress concentration factor is investigated via the parametric study considering variations of local wall thinning depth and location, and bending angle. As a result of the investigation, it is identified that the effect of bending angle is insignificant for the feeder pipe with local wall thinning under internal pressure.