Measurement of thermally induced stresses in continuously welded rail through diffuse ultrasonic backscatter

Christopher Kube, Mahmood Fateh, Goutam Ghoshal, Joseph A. Turner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

The relationship between grain scattering and uniaxial stress has recently been theoretically developed [1]. The scattering results because of reflections at grain boundaries and discontinuities in the microstructure. The acoustoelastic response of individual grains due to temperature and stress gradients has a direct influence on the strength of the scattering. Measurements of mechanically-induced uniaxial compressive stress on a rail section and thermal stresses within continuously welded rail (CWR) were performed. It was found that this technique can produce measurement resolution of at least 10 -4/MPa.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
Pages1673-1680
Number of pages8
Edition31
DOIs
StatePublished - Jul 13 2012
Event38th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE - Burlington, VT, United States
Duration: Jul 17 2011Jul 22 2011

Publication series

NameAIP Conference Proceedings
Number31
Volume1430
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other38th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE
Country/TerritoryUnited States
CityBurlington, VT
Period7/17/117/22/11

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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