Integration of the Ashby Technique and Pahl-Beitz Quantitative Ranking for Railway Axle Material Selection

Nafisah, Helya Chafshoh
Fatriansyah, Jaka Fajar
Surip, Siti Norasmah

Journal of Materials Exploration and Findings (JMEF)
Vol. 3, No. 1

Railway axle serves as a vital connection between the train's wheels and its body. However, cyclic loading and high speed can induce fatigue in railway axle, which potentially leads to damage human safety. Therefore, it is important to find materials that have good mechanical properties with the lowest weight and cost. In this paper, a comprehensive method using Ashby chart has been performed to select candidate materials of railway axle. The methods begin with analyzing function by determining the problem, objective function, and constraints. After that, the results obtained are ranked using Pahl and Beitz quantitative weighting method. The results showed that the best five candidate materials for railways axle are Ti-6Al-4V, AISI 4130, EA16 carbon steel, bismaleimide matrix CFRP, and 7000 Al, respectively.