철도차량 차륜의 잔류응력 평가 = Evaluation of Residual Stress of railway wheel

다국어 초록 (Multilingual Abstract)

Railway wheel and axle are the most critical components in railway system. A wheel and axle failure can cause a derailment with its attendant loss of life and property. The service conditions of railway vehicles have become severe in recent years due to a general increase in operating speeds. Therefore, more precise evaluation of wheel set strength and safety has been desired. Damages of railway wheel are a spalling by wheel/rail contact and thermal crack by braking heat etc. One of the main source of damage is a residual stress, therefore it is important to evaluate exactly.
A Residual stress of wheel is formed at the process of heat treatment when manufacturing. it is changed by contact stress developed by wheel/rail contact and thermal stress from heat induced in braking. The objective of this paper is to estimate the variation and magnitude of the residual stress of railway wheel.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 제조시 열처리에 의한 잔류응력
• 3. 제동시 잔류응력
• 4. 휠/레일 접촉에 의한 잔류응력 변화
• 5. 결론
• 후기
• 참고문헌