Failure simulation of nuclear pressure vessel under severe accident conditions: Part II - Failure modeling and comparison with OLHF experiment

• Published in: Nuclear engineering and technology Vol. 55; no. 11; pp. 4134 - 4145
• Main Authors: Eui-Kyun Park, Jun-Won Park, Yun-Jae Kim, Yukio Takahashi, Kukhee Lim, Eung Soo Kim
• Format: Journal Article
• Language: Korean
• Published: 2023
• Subjects: Strain based failure model; Validation using OLHF test; Failure prediction of nuclear pressure vessel; Severe accident condition

This paper proposes strain-based failure model of A533B1 pressure vessel steel to simulate failure, followed by application to OECD lower head failure (OLHF) test simulation for experimental validation. The proposed strain-based failure model uses simple constant and linear functions based on physic...