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

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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

File Language:

English

Details

Creators:

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

Avanti Tech, LLC
Subject/TRT Terms:
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.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/26233/dot_26233_DS1.pdf
File Type:

[PDF - 8.79 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:04ccb5bfa57afe48ad4eabe9ecbf797d7a97e5b7532005dd3418e8852d3598216faf46c0c5bade3d02b01105d088d78cb59ed56ad1bb197151ce0274aef4a9ef

File Language:

English

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