Detecting damages and stress changes in concrete structures using Coda wave interferometry

Hanyu Zhan; Hanwan Jiang; Ruinian Jiang; Jinquan Zhang

doi:10.1117/12.2514369

1 April 2019 Detecting damages and stress changes in concrete structures using Coda wave interferometry

Hanyu Zhan, Hanwan Jiang, Ruinian Jiang, Jinquan Zhang

Proceedings Volume 10971, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII; 109710D (2019) https://doi.org/10.1117/12.2514369
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

Coda waves experiencing long propagation time and travel path are sensitive to weak changes in a medium. Coda wave interferometry (CWI) is an efficient method to analyze coda waveform variations. In this paper, the CWI technique is used to detect minute cracks and stress changes in a 6-meter reinforced concrete beam. Specifically, four-bending tests with varied loads are conducted on the beam, and a couple of sensors are installed sparsely to collect ultrasonic wave signals. Then for each source-receiver pair, the coda waveform variations between load steps are quantified using the CWI technique. The results show that the stress changes and minute cracks in the beam can be detected through the velocity changes and decorrelations of the coda waveforms. The presented study may provide a useful tool for concrete structural nondestructive evaluation and testing (NDT) applications.

Conference Presentation

Citation Download Citation

Hanyu Zhan, Hanwan Jiang, Ruinian Jiang, and Jinquan Zhang "Detecting damages and stress changes in concrete structures using Coda wave interferometry", Proc. SPIE 10971, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XIII, 109710D (1 April 2019); https://doi.org/10.1117/12.2514369

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available