Evaluating pre-fatigue crack resistance in ER9 railway wheels under cyclic loading conditions

Name: P. Kakaew

Organization : King Mongkut's University of Technology North Bangkok. The Sirindhorn International Thai-German Graduate School of Engineering

Name: E. Viyanit

Organization : National Science and Technology Development Agency. National Metal and Materials Technology Center

Name: C. Ngamkhanong

Organization : Chulalongkorn University. Department of Civil Engineering

Name: K. Sojiphan

Organization : King Mongkut's University of Technology North Bangkok. The Sirindhorn International Thai-German Graduate School of Engineering

Email : kittichai.s@tggs.kmutnb.ac.th

keyword: Railway wheel

LCSH: Mechanical ability -- Testing

; Fatigue cracking

Abstract: Rail transport is a high priority for transporting goods and passengers in several countries. Although railway wheels are specifically designed and manufactured for intended uses, wheels are subjected to increasing axle loads and running speeds and requires several re-turning processes to keep wheel profile proper geometry for wheel-rail interaction. Excessive wear on railway wheel also causes rolling contact fatigue which is major factor contributing to decreasing lifespan of railway wheels. This research aims to evaluate the fatigue performance of high-strength steel under cyclic loading conditions. Standardized single-edge notched bend specimens were machined from ER9 railway wheels, ensuring compliance with ASTM E1820 dimensional and preparation requirements. Cyclic loading tests were conducted using a servo-hydraulic testing machine under 3-point bending with constant displacement to simulate stress conditions. The analysis focused on characterizing the material crack, specifically its pre-crack initiation and propagation resistance

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2025-08-18

Issued: 2025-08-18

บทความ/Article

application/pdf

BibliograpyCitation : In Thai Society of Mechanical Engineers (TSME) and Kasetsart University (KU). The 14th TSME International Conference on Mechanical Engineering (TSME-ICoME14 2024) (AMM0028). Chonburi : Kasetsart University Sriracha Campus, 2024

eng

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