Metal Fracture: The Fatigue Cycle That Really Counts

RAILWAY AGE FEBRUARY 2022 ISSUE: Welcome to “Timeout for Tech with Gary T. Fry, Ph.D., P.E.” Each month, we examine a technology topic that professionals in the railway industry have asked to learn more about. This month our topic is fracture of steel.

Figure 1. Transverse fatigue crack in a broken railroad rail. (Courtesy of Gary T. Fry.)

Timeout for Tech: Metal Fatigue

RAILWAY AGE, JANUARY 2022 ISSUE: Dangerous fatigue cracks develop in sound steel. Here’s how.