Modelling of the response of an ACFM sensor to rail and rail wheel RCF cracks

Gemma Nicholson; Claire Davis

doi:10.1016/j.ndteint.2011.11.010

Modelling of the response of an ACFM sensor to rail and rail wheel RCF cracks

Gemma Nicholson, Claire Davis

Research output: Contribution to journal › Article

44 Citations (Scopus)

Abstract

This paper discusses the relationship between ACFM signal and RCF defects in railway rails and wheels using an FEM model developed with COMSOL Multiphysics that has been verified for single and multiple RCF type cracks. The response to semi-elliptical defects of surface length 2 mm to 40 mm, and elliptical ratio 1:1 to 1.75:1, has been simulated and it is shown that the ACFM signal is most sensitive to, and therefore able to accurately size, RCF defects

Original language	English
Pages (from-to)	107-114
Number of pages	8
Journal	NDT & E International
Volume	46
DOIs	https://doi.org/10.1016/j.ndteint.2011.11.010
Publication status	Published - 1 Mar 2012

Keywords

RCF cracks
Wheels
ACFM
Rail
Modelling

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10.1016/j.ndteint.2011.11.010

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title = "Modelling of the response of an ACFM sensor to rail and rail wheel RCF cracks",

abstract = "This paper discusses the relationship between ACFM signal and RCF defects in railway rails and wheels using an FEM model developed with COMSOL Multiphysics that has been verified for single and multiple RCF type cracks. The response to semi-elliptical defects of surface length 2 mm to 40 mm, and elliptical ratio 1:1 to 1.75:1, has been simulated and it is shown that the ACFM signal is most sensitive to, and therefore able to accurately size, RCF defects ",

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N2 - This paper discusses the relationship between ACFM signal and RCF defects in railway rails and wheels using an FEM model developed with COMSOL Multiphysics that has been verified for single and multiple RCF type cracks. The response to semi-elliptical defects of surface length 2 mm to 40 mm, and elliptical ratio 1:1 to 1.75:1, has been simulated and it is shown that the ACFM signal is most sensitive to, and therefore able to accurately size, RCF defects

AB - This paper discusses the relationship between ACFM signal and RCF defects in railway rails and wheels using an FEM model developed with COMSOL Multiphysics that has been verified for single and multiple RCF type cracks. The response to semi-elliptical defects of surface length 2 mm to 40 mm, and elliptical ratio 1:1 to 1.75:1, has been simulated and it is shown that the ACFM signal is most sensitive to, and therefore able to accurately size, RCF defects

KW - RCF cracks

KW - Wheels

KW - ACFM

KW - Rail

KW - Modelling

U2 - 10.1016/j.ndteint.2011.11.010

DO - 10.1016/j.ndteint.2011.11.010

M3 - Article

VL - 46

SP - 107

EP - 114

JO - NDT & E International

JF - NDT & E International

ER -

Modelling of the response of an ACFM sensor to rail and rail wheel RCF cracks

Abstract

Keywords

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