Stress-dependent changes in the diffuse ultrasonic backscatter coefficient in steel: Experimental results

Christopher M. Kube, Hualong Du, Goutam Ghoshal, Joseph A. Turner

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

In this article, the effects of uniaxial compressive loading on the ultrasonic scattering from polycrystalline grains are shown for 10 MHz ultrasound in annealed, 1018 steel. The results show a decreasing value of the stress-dependent backscatter coefficient for normal incident ultrasound when the compression loading is perpendicular to the scattering direction. The change due to scattering is about 2 orders of magnitude greater than changes observed by others using ultrasonic wavespeed measurements. It is anticipated that this research can serve as the basis for many methods associated with nondestructive determination of stress in structural materials.

Original languageEnglish (US)
Pages (from-to)EL43-EL48
JournalJournal of the Acoustical Society of America
Volume132
Issue number1
DOIs
StatePublished - Jul 1 2012

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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