Document Type
Article
Publication Date
1-9-2021
Department
Department of Mechanical Engineering-Engineering Mechanics
Abstract
In this study, we present a method to estimate the depth of near-surface shallow delamination in concrete using a noncontact micro-electromechanical system (MEMS) ultrasonic sensor array and an optimization-based data processing approach. The proposed approach updates the bulk wave velocities of the tested concrete element by solving an optimization problem using reference ultrasonic scanning data collected from a full-depth concrete region. Subsequently, the depth of concrete delamination is estimated by solving a separate optimization problem. Numerical simulations and laboratory experiments were conducted to evaluate the performance of the proposed ultrasonic data processing approach. The results demonstrated that the depth of shallow delamination in concrete structures could be accurately estimated.
Publication Title
Applied Sciences (Switzerland)
Recommended Citation
Song, H.,
Hong, J.,
Choi, H.,
&
Min, J.
(2021).
Concrete delamination depth estimation using a noncontact mems ultrasonic sensor array and an optimization approach.
Applied Sciences (Switzerland),
11(2), 1-13.
http://doi.org/10.3390/app11020592
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/14614
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Version
Publisher's PDF
Publisher's Statement
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. Publisher’s version of record: https://doi.org/10.3390/app11020592