Analysis of loads distribution and low cycle fatigue for bent threaded connections

Abstract

In this paper it is shown that the modified normative method improved by incorporating in the calculation the data of load distribution in threads is fitted for the fatigue life prediction of cyclically bent threaded connections. The model for calculation of load and stress distribution along the thread based on elastic deformation properties of the full and partial profile turns pairs is used. Results of fatigue life prediction obtained for the cyclically bent threaded connections M16x2 are close to the experimental values, howerer do not exceed them.