Health monitoring of rock bolts using ultrasonic guided waves

C. He, J. K. Van Velsor, C. M. Lee, J. L. Rose

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

14 Scopus citations


It is necessary to quantify the amount of delamination present in load bearing rock bolts, as small amounts may be deemed acceptable and large amounts may lead to catastrophic failure. In this work, a semi-analytical FEM model is used to calculate the theoretical wave structures for a rod embedded in concrete. A qualitative relationship between percent delamination and wave reflection energy is demonstrated. It is shown that with the proper selection of inspection parameters, it is possible to inspect large lengths (10+ ft.) of embedded rod using an ultrasonic guided wave pulse-echo technique.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publicationVolume 25A
Number of pages7
StatePublished - Mar 6 2006
EventReview of Progress in Quantitative Nondestructive - Brunswick, ME, United States
Duration: Jul 31 2005Aug 5 2005

Publication series

NameAIP Conference Proceedings
Volume820 I
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherReview of Progress in Quantitative Nondestructive
Country/TerritoryUnited States
CityBrunswick, ME

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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