Quantitative ultrasonic evaluation of concrete structures using one-sided access

Lev Khazanovich, Kyle Hoegh

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

3 Scopus citations

Abstract

Nondestructive diagnostics of concrete structures is an important and challenging problem. A recent introduction of array ultrasonic dry point contact transducer systems offers opportunities for quantitative assessment of the subsurface condition of concrete structures, including detection of defects and inclusions. The methods described in this paper are developed for signal interpretation of shear wave impulse response time histories from multiple fixed distance transducer pairs in a self-contained ultrasonic linear array. This included generalizing Kirchoff migration-based synthetic aperture focusing technique (SAFT) reconstruction methods to handle the spatially diverse transducer pair locations, creating expanded virtual arrays with associated reconstruction methods, and creating automated reconstruction interpretation methods for reinforcement detection and stochastic flaw detection. Interpretation of the reconstruction techniques developed in this study were validated using the results of laboratory and field forensic studies. Applicability of the developed methods for solving practical engineering problems was demonstrated.

Original languageEnglish (US)
Title of host publication42nd Annual Review of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publicationIncorporating the 6th European-American Workshop on Reliability of NDE
EditorsLeonard J. Bond, Dale E. Chimenti
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413535
DOIs
StatePublished - Feb 10 2016
Event42nd Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2015, Incorporating the 6th European-American Workshop on Reliability of NDE - Minneapolis, United States
Duration: Jul 26 2015Jul 31 2015

Publication series

NameAIP Conference Proceedings
Volume1706
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other42nd Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2015, Incorporating the 6th European-American Workshop on Reliability of NDE
CountryUnited States
CityMinneapolis
Period7/26/157/31/15

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