Fatigue Life Estimation of Suspension Components using Statistical Method
Date Published: 2009-04-20
Paper Number:2009-01-0080
DOI: 10.4271/2009-01-0080
Citation:
Yoo, Y., Yoo, Y., and Jeon, J., "Fatigue Life Estimation of Suspension Components using Statistical Method," SAE Technical Paper 2009-01-0080, 2009, doi:10.4271/2009-01-0080.
Author(s):
Yeonsang Yoo - Hyundai Motor Co.
Youngduk Yoo - Hyundai Motor Co.
Jaewook Jeon - Hyundai Motor Co.
Abstract:
Depending on the scatter of material properties, geometrical shapes and load conditions, the fatigue life of mechanical components has wide range of scatter although they were tested under same conditions. This scatter is the main reason of different results between observed and predicted fatigue life. This study shows how to estimate the fatigue life distribution by analysis. Dominant factors for fatigue life distributions and their scatter could be obtained by comparing the analysis results and fatigue test results. Applying the scatter of these factors to fatigue analysis, it was possible to predict fatigue life distributions. This will improve the reliability of fatigue life estimation, therefore a more robust and reliable component design is possible.
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