Modelling and experimental measurements of idealised and light-moderate RCF cracks in rails using an ACFM sensor
作者： G.L. Nicholson , A.G. Kostryzhev , X.J. Hao , C.L. Davis
DOI: 10.1016/J.NDTEINT.2011.04.003
关键词:
摘要: Abstract Alternating current field measurement (ACFM) sensors can be used to detect surface breaking defects in metal components. In rails rolling contact fatigue (RCF) cracks form due the wheel–rail stresses. These are and have complex shapes. A COMSOL model has been developed for a commercial ACFM system RCF rails. this paper results compared experimental measurements using an pencil probe calibration machined into rail real (light moderate categories;
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