원형 감육이 발생한 피더관의 굽힘각도에 따른 한계하중의 변화

Flow Accelerated Corrosion (FAC) during in-service conditions produces local wall-thinning in the feeder pipes of CANDU. The Wall-thinning in the feeder pipes is main degradation mechanisms affecting the integrity of piping systems. This paper discusses the effect of band angle about wall-thinned feeder pipes using limit load analysis. Based on finite element limit analyses, this paper provides limit load change during band angle change for wall-thinning feeder pipes under in-plane bending. The limit loads are determined from limit analyses based on elastic-perfectly-plastic materials using the large geometry change.