Calculation of the Probability of Crack Detection Considering the Crack Growth in Rail

초록

Nondestructive inspection (NDI) is an integral part of railway maintenance. Currently, many different NDI techniques are applied to detect cracks in a rail head such as ultrasonic, magnetic flux leakage, radiography et al. The objective of this research is to calculate the probability of crack detection during an initial crack grows to an allowable crack considering the probability of growing crack detection, crack growth rate and inspection interval.