Modeling guided wave propagation with application to the long-range defect detection in railroad tracks

The aim of this work is to demonstrate the use of a commercial finite element package, ABAQUS EXPLICIT, to model ultrasonic guided waves in structural components. The particular application of interest is modeling the interaction of a broadband vertical bending mode with transverse-type defects in railroad tracks. This topic is part of a broader project on high-speed defect detection in rails by long-range ultrasonic inspections. Reflection coefficient spectra in the 20-45 kHz range are obtained for four different sizes and three different orientations of transverse head flaws. A preliminary study of Lamb waves in a free plate helps drawing modeling guidelines for the rail. (A) "Reprinted with permission from Elsevier".

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09638695
• Authors:
  • BARTOLI, I
  • LANZA DI SCALEA, F
  • FATEH, M
  • VIOLA, E
• Publication Date: 2005-7

Language

• English

Media Info

• Pagination: 325-34
• Serial:
  • NDT & E International
  • Volume: 38
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 0963-8695

Subject/Index Terms

• TRT Terms: Detection and identification; Finite element method; Railroad tracks; Ultrasonics; Waves
• ITRD Terms: 9115: Detection; 6490: Finite element method; 1062: Railway track; 6739: Ultrasonic; 6767: Wave
• Subject Areas: Maintenance and Preservation; Pipelines; Railroads;

Filing Info

• Accession Number: 01011976
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Dec 20 2005 11:36AM