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Volume 12
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10.3390/buildings12050514
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Article

Ultrasonic Coda Wave Experiment and Simulation of Concrete Damage Process under Uniaxial Compression

by
Yameng He
*,
Lei Song
,
Keke Xue
,
Shukui Liu
,
Haipeng Li
,
Weihao Yang
and
Jiahui Huang
State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
*
Author to whom correspondence should be addressed.
Buildings 2022, 12(5), 514; https://doi.org/10.3390/buildings12050514
Submission received: 21 March 2022 / Revised: 16 April 2022 / Accepted: 17 April 2022 / Published: 20 April 2022
(This article belongs to the Topic Recent Advances in Structural Health Monitoring)
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Abstract

Using the coda wave interferometry (CWI) method to obtain the ultrasonic coda wave characteristics of loaded concrete is an important method to evaluate the mechanical response of concrete. In this paper, the ultrasonic coda wave characteristics of C40–C70 concrete specimens (four strengths of concrete) under uniaxial compression were tested by laboratory experiments. Furthermore, to clarify the relationship between the internal damage process of concrete and the change rate of coda wave velocity, an ultrasonic coda wave discrete element simulation model combined with digital image processing technology was established. The results show that the coda wave is very sensitive to small changes in the compressive damage to concrete, and the change in coda wave velocity can correspond to the development process of concrete damage. This research is conducive to a better understanding of the complex material behavior of compressive concrete and proves the feasibility of ultrasonic field simulation and processing by using numerical simulation images of concrete damage.
Keywords: coda wave interferometry; concrete damage process; discrete element simulation; digital image processing coda wave interferometry; concrete damage process; discrete element simulation; digital image processing

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MDPI and ACS Style

He, Y.; Song, L.; Xue, K.; Liu, S.; Li, H.; Yang, W.; Huang, J. Ultrasonic Coda Wave Experiment and Simulation of Concrete Damage Process under Uniaxial Compression. Buildings 2022, 12, 514. https://doi.org/10.3390/buildings12050514

AMA Style

He Y, Song L, Xue K, Liu S, Li H, Yang W, Huang J. Ultrasonic Coda Wave Experiment and Simulation of Concrete Damage Process under Uniaxial Compression. Buildings. 2022; 12(5):514. https://doi.org/10.3390/buildings12050514

Chicago/Turabian Style

He, Yameng, Lei Song, Keke Xue, Shukui Liu, Haipeng Li, Weihao Yang, and Jiahui Huang. 2022. "Ultrasonic Coda Wave Experiment and Simulation of Concrete Damage Process under Uniaxial Compression" Buildings 12, no. 5: 514. https://doi.org/10.3390/buildings12050514

APA Style

He, Y., Song, L., Xue, K., Liu, S., Li, H., Yang, W., & Huang, J. (2022). Ultrasonic Coda Wave Experiment and Simulation of Concrete Damage Process under Uniaxial Compression. Buildings, 12(5), 514. https://doi.org/10.3390/buildings12050514

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