Crack growth in pin-loaded tubes Part 1: numerical analysis

摘要

This paper contains a numerical analysis of a cracked pin-loaded tube. The relationship between the various methods of calculating `total' or `equivalent' stress intensity factors is discussed and the reliability of using J contour integral results is shown. Trends in the stress intensity factors K_I, K_II, K_III and K_e are found and the changes in these factors for changes in the profile and length of the crack are explained. A set of `best-case' curves reflecting the profile of the crack in the experimental work and the method of selecting these cases is shown; these will be used for comparison with experimental data in a companion paper, Part 2, which follows.