The Influence of Residual Stresses by Shot Peening on Fatigue Strength of the Automobile's Coil Spring

Abstract:

Durability assessment for the suspension system of the vehicle is very important. Particularly, corrosion fatigue strength of coil spring depends on many factors including mechanical and environmental properties. In this paper, residual stresses by multiple shot peening were analyzed using finite element analysis, and evaluated its effect on corrosion fatigue strength. And also, a corrosion fatigue design criterion for coil spring of light commercial vehicle (LCV) based on proving ground response was proposed.

• Periodical: Key Engineering Materials (Volumes 297-300)
• Pages: 357-364
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.297-300.357
• Online since: November 2005
• Authors: Dong Ho Bae, Gyu Young Lee, Won Seok Jung, S.C. Park, Won Wook Jung
• Keywords: Coil Spring, Fatigue Design, Fatigue Strength, Proving Ground Response, Residual Stress, Shot Peening, Suspension System

References

[1] S.M. Jung and D.C. Han: Machine Design (Dong Myung Co. 1996), pp.481-484.

[2] ASTM, Standard Practice for conducting Constant Amplitude Axial Fatigue Tests of Metallic Materials, E466-82 (1993), pp.567-571.

[3] Denny A. Jones: Principles and Prevention of Corrosion (Prentice-Hall, inc. 1996), pp.244-245.