Failure Analysis of Compression Helical Spring used in the Suspension System by FEA

This paper is an investigation and comparison between ASTM A227 and Chromium vanadium AISI 6150 as a material in springs used in vehicles suspension systems. Numerical analysis using ANSYS 16.1 software to calculate the early failure and predict the resistance of the material and under the effect of the harmonic forces of 4250 N and 4500 N and the frequency of 100 Hz at the rate of increase 5 Hz. The results have been shown is concluded, that by using Chromium vanadium AISI 6150 would be highly durable and more efficient for use in suspension systems in the vehicles through riding on the slopes or bumped road. Also, can choose the appropriate material according to loads or weight of the vehicles and operating conditions.