Journal Published Online: 21 July 2020
Volume 9, Issue 1

Fatigue Behavior of Bolted Joints: Comparative Analysis for the Effect of Fretting and Stress Concentration

CODEN: MPCACD

Abstract

In this paper, a methodology is developed to investigate the combined effect of some main factors (bolt pretension load, shear load, coefficient of friction, and bolted joints structure) on the fatigue performance of bolted joints. A parameter k, which reflects the ratio of bolt pretension load to shear load, is used to evaluate the competition effect of fretting and stress concentration on fatigue damage of bolted joints. The analysis result deduces that as the increase of k, the effect of stress concentration is decreased, while the influence of fretting is increased. At the increase of the bolt pretension load, the fatigue crack formation position will be far away from the hole center. This parameter k can be used as a design or assembly parameter to improve the strength performance of the bolted joints.

Author Information

Li, Xin
School of Mechanical-Electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Xicheng District, Beijing, China
Yang, Jianwei
Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles, School of Mechanical-Electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Xicheng District, Beijing, China
Pages: 15
Price: $25.00
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Details
Stock #: MPC20200018
ISSN: 2379-1365
DOI: 10.1520/MPC20200018