The Evolution of Contact Stress and Surface Profile in Press-Fitted Shaft under Partial Slip Conditions

Abstract:

In this paper the fretting wear of press-fitted specimens under partial slip conditions was simulated using finite element method and numerical analysis based on Archard's equation. An elasto-plastic analysis of contact stresses in a press-fitted shaft in contact with a boss was conducted with finite element method and the amount of microslip and contact pressure due to bending load was estimated. The predicted wear profile of press-fitted specimens at the contact edge was compared with the experimental results. It is found that the depth of fretting wear by repeated slip between shaft and boss reaches the maximum value at the contact edge. The initial surface profile is continuously changed by the wear at the contact edge, and then the corresponding contact stresses and strain are redistributed.

• Periodical: Key Engineering Materials (Volumes 321-323)
• Pages: 1495-1498
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.321-323.1495
• Online since: October 2006
• Authors: Dong Hyung Lee, Seok Jin Kwon, Chan Woo Lee, Jae Boong Choi, Young Jin Kim
• Keywords: Contact Pressure, Fretting, Microslip, Press-Fitted Shaft, Wear

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