Inspection of concrete-metal rod interface using guided waves

Won Bae Na, Tribikram Kundu, Mohammad R. Ehsani

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

The feasibility of detecting interface degradation and separation of steel rebars in concrete beams using Lamb waves is investigated in this paper. It is shown that Lamb waves can easily detect these defects. A special coupler between the steel rebar and ultrasonic transducers has been used to launch non-axisymmetric guided waves in the steel rebar. This investigation shows that the Lamb wave inspection technique is an efficient and effective tool for health monitoring of reinforced concrete structures because the Lamb wave can propagate a long distance along the reinforcing steel bars embedded in concrete as the guided wave and is sensitive to the interface debonding between the steel rebar and concrete.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
Pages59-64
Number of pages6
Volume240
Publication statusPublished - 2000

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Na, W. B., Kundu, T., & Ehsani, M. R. (2000). Inspection of concrete-metal rod interface using guided waves. In American Society of Mechanical Engineers, Applied Mechanics Division, AMD (Vol. 240, pp. 59-64)