The need of optimising inspection intervals of wheelsets has led to increasing attention to inspection intervals of railway axles. This paper addresses such a problem by comparing an EPFM model and two fatigue crack growth softwares widely used (namely AFGROW, NASGRO) and other Strip-Yield formulations with a data set of propagation data on small and full-scale specimens made of 30NiCrMoV12 steel used for the construction of railway axles. Comparisons, made under constant amplitude and block loading, support the application of tested growth algorithms to the estimation of inspection intervals.
A comparison of algorithms for fracture propagation in railway axles
BERETTA, STEFANO;CARBONI, MICHELE;
2003-01-01
Abstract
The need of optimising inspection intervals of wheelsets has led to increasing attention to inspection intervals of railway axles. This paper addresses such a problem by comparing an EPFM model and two fatigue crack growth softwares widely used (namely AFGROW, NASGRO) and other Strip-Yield formulations with a data set of propagation data on small and full-scale specimens made of 30NiCrMoV12 steel used for the construction of railway axles. Comparisons, made under constant amplitude and block loading, support the application of tested growth algorithms to the estimation of inspection intervals.File in questo prodotto:
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