Effects on Fatigue Life of Bolt by Scatter of Pre-Tension Stress
This paper adopts contacting finite element method to perform exact stress and strain analysis on bolt joint structure, and the curve of pre-tension stress-life σp-N was drawn. According to the curve, production practice can be well guided and the optimum pre-tension stress may be obtained .By the means of curve between load and deformation, the curve shape of σp-N was analyzed in detail, the results showed that the analysis by finite element was coincident with mechanics analysis.
H. K. Du and F. Y. Kong, "Effects on Fatigue Life of Bolt by Scatter of Pre-Tension Stress", Advanced Materials Research, Vols. 308-310, pp. 1283-1287, 2011