Influence of Cracks on the Reliability of Acoustic Emission Monitoring of Concrete Structures

Abstract (2017)

Authors

F. Zhang Concrete Structures - CEG
Lotfollah Pahlavan Ship Hydromechanics and Structures - Mechanical, Maritime and Materials Engineering
Y. Yang Concrete Structures - CEG
D.A. Hordijk Concrete Structures - CEG
Research Group
Concrete Structures (CEG) (TU Delft)
More Info
expand_more

Published Date

2017

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Concrete Structures

Abstract

Acoustic Emission (AE) technique has promising features for structural health monitoring reinforced concrete structures. However, cracks in existing structures may challenge the commonly-used notion that increased degradation would lead to increased recorded AE activity, and/or adversely affect the accuracy of the localization process. In this article, influence of cracks on the accuracy and reliability of AE results on concrete structures has been quantitatively studied based on measurements on cracks between 0.05 mm and 3 mm. With the demonstrated crack-induced localization errors and substantial attenuation ranges, the presented results may offer new insights into the accuracy and reliability of AE monitoring for existing concrete structures.