Research and development of ultrasonic tomography technology for three-dimensional imaging of internal rail flaws : modeling and simulation.

di Scalea, Francesco Lanza; Reynolds, Faye M.; Rizzo, Piervincenzo; Salamone, Salvatore; Bartoli, Ivan; Avanti Tech, LLC

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Research and development of ultrasonic tomography technology for three-dimensional imaging of internal rail flaws : modeling and simulation.

2013-04-01
By di Scalea, Francesco Lanza ; Reynolds, Faye M. ; Rizzo, Piervincenzo ; ...

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English

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Creators:

di Scalea, Francesco Lanza ; Reynolds, Faye M. ; Rizzo, Piervincenzo ; Salamone, Salvatore ; Bartoli, Ivan

di Scalea, Francesco Lanza ; Reynolds, Faye M. ; Rizzo, Piervincenzo ; Salamone, Salvatore ; Bartoli, Ivan Less -
Corporate Creators:

Avanti Tech, LLC
Subject/TRT Terms:

[+]

Defects Finite Element Method High Speed Rail Mathematical Models Rail (Railroads) Signal Processing Simulation Three Dimensional Displays Tomography Ultrasonic Tests
Publication/ Report Number:

DOT/FRA/ORD-13/20
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Railroad Administration. Office of Research and Development
NTL Classification:

NTL-RAIL TRANSPORTATION-High Speed Ground Transportation;NTL-RAIL TRANSPORTATION-Rail Safety;NTL-SAFETY AND SECURITY-Rail Safety;
Abstract:

This report covers the work performed under the FRA High-Speed BAA 2010–2011 program to demonstrate the technology of ultrasonic tomography for 3-D imaging of internal rail flaws. There is a need to develop new technologies that are able to quantify characteristics of the internal rail flaws so as to ensure increased safety of rail transportation and reduced rail maintenance costs. In this work, ultrasonic tomography has been applied to the detection of a 5 percent rail head area (RHA) transverse defect in the railhead. This project has built finite element models of ultrasonic tomographic arrays on a flawed rail and identified an algorithm designed to perform the tomographic imaging of the internal rail flaw in 3-D and automatically. The results show excellent 3-D imaging performance with the proposed approach. The work therefore confirms the potential of the ultrasonic tomography technique for quantitative verification of internal rail flaws.
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PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

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urn:sha256:fe2a5800b8da4f4c61ea27284ced082923b9b749b4dbf804fd607e8a54ce8bfd
Download URL:

https://rosap.ntl.bts.gov/view/dot/26233/dot_26233_DS1.pdf
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Research and development of ultrasonic tomography technology for three-dimensional imaging of internal rail flaws : modeling and simulation.

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