Burst pressure estimation equations for steam generator tubes with multiple axial surface cracks. (December 2017)

• Record Type: Journal Article
• Authors: Lee, Myeong-Woo; Kim, Ji-Seok; Kim, Yun-Jae; Kim, Jin-Weon
• Is Part Of: International journal of pressure vessels and piping. Volume 158(2017)
• Page Start: 59
• Page End: 68
• Publication Date: 2017-12
• Subjects: Alloy 690 steam generator tube -- Burst pressure estimation -- Multiple axial surface cracks -- Local collapse load approach; Pressure vessels -- Periodicals; Pipe -- Periodicals; Récipients sous pression -- Périodiques; Tuyaux -- Périodiques; Pipe; Pressure vessels; Periodicals; 681.76041
• DOI: 10.1016/j.ijpvp.2017.11.001
• Languages: English
• ISSNs: 0308-0161

Abstract

Abstract: This paper proposes burst pressure estimation equations for steam generator tubes with multiple axial surface cracks, based on the local collapse load approach concept. The proposed equations are for a single axial surface crack, two collinear axial surface cracks and two non-aligned axial surface cracks. The proposed equations are validated against experimental tube burst test results. Predicted burst pressures agree well with the experimental results, suggesting validity of the proposed equations to estimate burst pressures for multiple axial surface cracks. Highlights: Burst pressure estimation equations for steam generator tubes with multiple axial surface cracks were proposed. The proposed equations were based on the local collapse load approach concept. The proposed equations are for a single, two collinear and two non-aligned axial surface cracks. The proposed equations are validated against experimental tube burst test results. Validity of the proposed equations for multiple axial surface cracks were confirmed using the experimental results.