Stress evaluation method of reinforced wall-thinned Class 2/3 nuclear pipes for structural integrity assessment

• Published in: Nuclear engineering and technology Vol. 56; no. 4; pp. 1320 - 1329
• Main Authors: Kim, Jae-Yoon, Jang, Je-Hoon, Hwang, Jin-Ha, Kim, Yun-Jae
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2024; Elsevier
• Subjects: Class 2 and 3 nuclear piping; Equivalent pipe with the same stiffness; Reinforced wall-thinned pipe; Class 2 and 3 nuclear piping; Reinforced wall-thinned pipe; Equivalent pipe with the same stiffness

When wall-thinning occurs in nuclear Class 2 and 3 pipes, reinforcement is typically applied rather than replacement. To analyze the structural integrity of reinforced wall-thinned pipe, stress analysis results using full 3-D FE analysis are not compatible to the design code equation, ASME BPVC Sec....