Fracture Mechanics Characteristics of Wheel Materials for High Speed Train

고속철도용 차륜재의 파괴 역학적 특성

The service demands of railway vehicles have become severe in recent years due to a general increase in operating speeds. It is very important to evaluate the fracture mechanics characteristics with respect to high-speed train wheel. In the present study, fracture mechanics characterization tests were carried out in accordance with various wheel materials. The result shows that fracture mechanics characteristic should be considered in the design code of the wheel materials.