Acoustic emission evaluation and localization correction of concrete damage considering stress levels

The key focus of acoustic emission technology is the precision in evaluating concrete damage and pinpointing damage sources. This study proposes a method for correcting the acoustic emission evaluation of concrete under different stress levels. The validation was conducted through uniaxial graded lo...

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Main Authors: Xiuxin Li, Tianjiao Miao, Tao Liu, Rengan Chen, Aiping Yu
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Case Studies in Construction Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214509525000804
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author Xiuxin Li
Tianjiao Miao
Tao Liu
Rengan Chen
Aiping Yu
author_facet Xiuxin Li
Tianjiao Miao
Tao Liu
Rengan Chen
Aiping Yu
author_sort Xiuxin Li
collection DOAJ
description The key focus of acoustic emission technology is the precision in evaluating concrete damage and pinpointing damage sources. This study proposes a method for correcting the acoustic emission evaluation of concrete under different stress levels. The validation was conducted through uniaxial graded loading tests on six groups of concrete samples with particle sizes of 4.75–9.5 mm, 9.5–16 mm, 16–19 mm, 19–26.5 mm, 26.5–31.5 mm, and continuous particle size. The results show that the AE elastic wave velocity has a strong correlation with the stress levels. The larger the coarse aggregate size of the samples, the smaller the final wave velocity in the instability stage. Based on the evolution law of wave velocity standard deviation Sv, the damage value Dv, and the AE energy, the damage process of concrete can be more accurately divided into four stages: the initial stage (I), the stable crack development stage (Ⅱ′), the rapid crack expansion stage (Ⅱ′′), and the instability and failure stage (Ⅲ). An Sv value of 1850 indicates that concrete is nearing the phase of stable failure, offering a benchmark to assess its serviceability. Compared to the traditional steady-state wave velocity localization methods, considering velocity attenuation in the localization correction method results in higher precision for reflecting crack morphology, increasing localization accuracy by 27.609 %.
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institution Kabale University
issn 2214-5095
language English
publishDate 2025-07-01
publisher Elsevier
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series Case Studies in Construction Materials
spelling doaj-art-75dfd3d226b14371afc5f96999fb0f5f2025-01-28T04:14:37ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04281Acoustic emission evaluation and localization correction of concrete damage considering stress levelsXiuxin Li0Tianjiao Miao1Tao Liu2Rengan Chen3Aiping Yu4College of Civil Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, ChinaCollege of Civil Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, ChinaCollege of Civil Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, ChinaCollege of Civil Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, ChinaCollege of Civil Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, China; Corresponding author at: College of Civil Engineering, Guilin University of Technology, Guilin 541004, ChinaThe key focus of acoustic emission technology is the precision in evaluating concrete damage and pinpointing damage sources. This study proposes a method for correcting the acoustic emission evaluation of concrete under different stress levels. The validation was conducted through uniaxial graded loading tests on six groups of concrete samples with particle sizes of 4.75–9.5 mm, 9.5–16 mm, 16–19 mm, 19–26.5 mm, 26.5–31.5 mm, and continuous particle size. The results show that the AE elastic wave velocity has a strong correlation with the stress levels. The larger the coarse aggregate size of the samples, the smaller the final wave velocity in the instability stage. Based on the evolution law of wave velocity standard deviation Sv, the damage value Dv, and the AE energy, the damage process of concrete can be more accurately divided into four stages: the initial stage (I), the stable crack development stage (Ⅱ′), the rapid crack expansion stage (Ⅱ′′), and the instability and failure stage (Ⅲ). An Sv value of 1850 indicates that concrete is nearing the phase of stable failure, offering a benchmark to assess its serviceability. Compared to the traditional steady-state wave velocity localization methods, considering velocity attenuation in the localization correction method results in higher precision for reflecting crack morphology, increasing localization accuracy by 27.609 %.http://www.sciencedirect.com/science/article/pii/S2214509525000804Acoustic emissionCoarse aggregate sizeElastic wave velocityDamage stagesWave velocity attenuation localization method
spellingShingle Xiuxin Li
Tianjiao Miao
Tao Liu
Rengan Chen
Aiping Yu
Acoustic emission evaluation and localization correction of concrete damage considering stress levels
Case Studies in Construction Materials
Acoustic emission
Coarse aggregate size
Elastic wave velocity
Damage stages
Wave velocity attenuation localization method
title Acoustic emission evaluation and localization correction of concrete damage considering stress levels
title_full Acoustic emission evaluation and localization correction of concrete damage considering stress levels
title_fullStr Acoustic emission evaluation and localization correction of concrete damage considering stress levels
title_full_unstemmed Acoustic emission evaluation and localization correction of concrete damage considering stress levels
title_short Acoustic emission evaluation and localization correction of concrete damage considering stress levels
title_sort acoustic emission evaluation and localization correction of concrete damage considering stress levels
topic Acoustic emission
Coarse aggregate size
Elastic wave velocity
Damage stages
Wave velocity attenuation localization method
url http://www.sciencedirect.com/science/article/pii/S2214509525000804
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AT tianjiaomiao acousticemissionevaluationandlocalizationcorrectionofconcretedamageconsideringstresslevels
AT taoliu acousticemissionevaluationandlocalizationcorrectionofconcretedamageconsideringstresslevels
AT renganchen acousticemissionevaluationandlocalizationcorrectionofconcretedamageconsideringstresslevels
AT aipingyu acousticemissionevaluationandlocalizationcorrectionofconcretedamageconsideringstresslevels