Crack Propagation on the Surface of the Bottleneck of a Pressure Vessel Considering the Initial Crack Angle

• Published in: Applied sciences Vol. 12; no. 8; p. 3913
• Main Authors: Zhou, Xiuyun, He, Ruijie, Zhou, Ting, Liu, Zhen
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.04.2022
• Subjects: Crack initiation; Crack propagation; Fracture mechanics; Growth models; pressure vessel; Pressure vessels; Propagation; Simulation; stress intensity factor

In order to solve the impact on the accuracy of a life prediction model when the initial crack angle of the curved surface is not 0°, the traditional stress intensity factor model is revised by the non-linear regression analysis method, and an optimized crack growth model is established. This paper...