@inproceedings{fa4a8b5132fd4452a2badfc2df353a72,
title = "Stress intensity factors for high aspect ratio semi-elliptical external surface cracks in cylindrical vessels",
abstract = "External surface cracks can occur in cylindrical vessels due to damage and propagate in the manufacturing process and during service life. Most of research focuses on stress intensity factors for surface cracks with low aspect ratios, i.e., a/c ≤1.0. Situation may well arise where the aspect ratio of cracks is larger than one. An external longitudinal surface crack is assumed to be subjected to different types of hoop stress distributions acting perpendicular to the crack faces. The stress intensity factors (SIFs) along the crack front were determined through the three-dimensional finite element method. Then these results are used to compute approximate values of SIFs in the case of complex loadings by employing both the superposition principle and the power series expansions of the actual hoop stresses. It is found that the maximum stress intensity factor for external surface cracks with high aspect ratio occurs at different point to that with low aspect ratio.",
keywords = "Aspect ratio, External longitudinal crack, Influence coefficient, Stress-intensity factors (SIFs)",
author = "Qi, \{Hong Yu\} and Guo, \{Peng Chao\}",
year = "2014",
doi = "10.4028/www.scientific.net/AMR.986-987.882",
language = "英语",
isbn = "9783038351603",
series = "Advanced Materials Research",
publisher = "Trans Tech Publications Ltd",
pages = "882--886",
booktitle = "Energy Research and Power Engineering 2014",
address = "瑞士",
note = "2014 International Conference on Energy Research and Power Engineering, ERPE 2014 ; Conference date: 17-05-2014 Through 18-05-2014",
}