Stress state analysis in pipeline tee joints equal passages: Report 1. The effect of internal pressure and bending moments in the tee joint plane

摘要

The stress state analysis has been made for two types of tee joints wherein a union intersects the main pipe al angles of 45 and 90°. The nature of stress distribution in tee joints illustrates the peculiar features of their operation under theaction of internal pressure and bending moments applied in the plane of the tee joint. Based on the theory of strength and specific potential strain energy due to distortion, the stress intensity factors have been found for all the loading modesconsidered. The calculated stress intensity factors are compared with the experimental ones obtained by other authors.