Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique

Tanbo Pan; Yonglai Zheng; Yubao Zhou; Zhuorui Wu; Yujue Zhou

doi:10.1007/978-3-031-32511-3_58

Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique

Tanbo Pan, Yonglai Zheng, Yubao Zhou^*, Zhuorui Wu, Yujue Zhou

^*Corresponding author for this work

Concrete Structures

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

Externally bonded (EB) carbon fiber reinforced polymer (CFRP) is widely used in structural strengthening and retrofitting. Premature debonding of the FRP severely limits the efficiency of CFRP utilization. The application of CRRP anchorage system offers a solution to the debonding problem. However, the understanding of damage mode identification of this combined system still remains elusive. Acoustic emission (AE) technique is employed to identify the damage mode of this CFRP anchorage system, due to its high sensitivity and the ability to detect damage in real-time. The objective of the current study is to identify the failure mechanisms of CFRP-strengthened beam by applying advanced pattern recognition techniques to the collected AE data. Firstly, four-point test of CFRP-strengthened beam was carried out until failure with simultaneous recording of AE signals. Then, correlation analysis was adopted to select the AE characteristic parameters, and principal component analysis (PCA) was used for dimensionality reduction. Lastly, the AE signals of the CFRP-strengthened beam was clustered to track the evolutionary behavior of the different damage modes by Gaussian mixture model (GMM) algorithm. Three main damage modes of CFRP-strengthened beam were identified by GMM clustering: concrete cracking, debonding of CFRP sheet and fracture of CFRP sheet. This study explores the damage evolution mechanism of combined system and provides a basis for achieving health monitoring of CFRP-strengthened structures.

Original language	English
Title of host publication	Building for the Future: Durable, Sustainable, Resilient.
Subtitle of host publication	Proceedings of the fib Symposium 2023 - Volume 2
Editors	Alper Ilki, Derya Çavunt, Yavuz Selim Çavunt
Publisher	Springer
Pages	552–561
Number of pages	10
Volume	350
ISBN (Electronic)	978-3-031-32511-3
ISBN (Print)	978-3-031-32510-6, 978-3-031-32513-7
DOIs	https://doi.org/10.1007/978-3-031-32511-3_58
Publication status	Published - 2023
Event	International Symposium of the International Federation for Structural Concrete, fib Symposium 2023 - Istanbul, Turkey Duration: 5 Jun 2023 → 7 Jun 2023

Publication series

Name	Lecture Notes in Civil Engineering
Publisher	Springer Cham
Volume	350 LNCE
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	International Symposium of the International Federation for Structural Concrete, fib Symposium 2023
Country/Territory	Turkey
City	Istanbul
Period	5/06/23 → 7/06/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Acoustic emission
CFRP anchorage system
Damage mode identification
Gaussian mixed model clustering
Principal component analysis

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10.1007/978-3-031-32511-3_58

Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission TechniqueFinal published version, 1.39 MB

Cite this

Pan, T., Zheng, Y., Zhou, Y., Wu, Z., & Zhou, Y. (2023). Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique. In A. Ilki, D. Çavunt, & Y. S. Çavunt (Eds.), Building for the Future: Durable, Sustainable, Resilient.: Proceedings of the fib Symposium 2023 - Volume 2 (Vol. 350, pp. 552–561). (Lecture Notes in Civil Engineering; Vol. 350 LNCE). Springer. https://doi.org/10.1007/978-3-031-32511-3_58

Pan, Tanbo ; Zheng, Yonglai ; Zhou, Yubao et al. / Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique. Building for the Future: Durable, Sustainable, Resilient.: Proceedings of the fib Symposium 2023 - Volume 2. editor / Alper Ilki ; Derya Çavunt ; Yavuz Selim Çavunt. Vol. 350 Springer, 2023. pp. 552–561 (Lecture Notes in Civil Engineering).

@inproceedings{0119ce736c4344bfac516769ed0cd767,

title = "Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique",

abstract = "Externally bonded (EB) carbon fiber reinforced polymer (CFRP) is widely used in structural strengthening and retrofitting. Premature debonding of the FRP severely limits the efficiency of CFRP utilization. The application of CRRP anchorage system offers a solution to the debonding problem. However, the understanding of damage mode identification of this combined system still remains elusive. Acoustic emission (AE) technique is employed to identify the damage mode of this CFRP anchorage system, due to its high sensitivity and the ability to detect damage in real-time. The objective of the current study is to identify the failure mechanisms of CFRP-strengthened beam by applying advanced pattern recognition techniques to the collected AE data. Firstly, four-point test of CFRP-strengthened beam was carried out until failure with simultaneous recording of AE signals. Then, correlation analysis was adopted to select the AE characteristic parameters, and principal component analysis (PCA) was used for dimensionality reduction. Lastly, the AE signals of the CFRP-strengthened beam was clustered to track the evolutionary behavior of the different damage modes by Gaussian mixture model (GMM) algorithm. Three main damage modes of CFRP-strengthened beam were identified by GMM clustering: concrete cracking, debonding of CFRP sheet and fracture of CFRP sheet. This study explores the damage evolution mechanism of combined system and provides a basis for achieving health monitoring of CFRP-strengthened structures.",

keywords = "Acoustic emission, CFRP anchorage system, Damage mode identification, Gaussian mixed model clustering, Principal component analysis",

author = "Tanbo Pan and Yonglai Zheng and Yubao Zhou and Zhuorui Wu and Yujue Zhou",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; International Symposium of the International Federation for Structural Concrete, fib Symposium 2023 ; Conference date: 05-06-2023 Through 07-06-2023",

year = "2023",

doi = "10.1007/978-3-031-32511-3_58",

language = "English",

isbn = "978-3-031-32510-6",

volume = "350",

series = "Lecture Notes in Civil Engineering",

publisher = "Springer",

pages = "552–561",

editor = "Alper Ilki and Derya {\c C}avunt and {\c C}avunt, {Yavuz Selim}",

booktitle = "Building for the Future: Durable, Sustainable, Resilient.",

}

Pan, T, Zheng, Y, Zhou, Y, Wu, Z & Zhou, Y 2023, Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique. in A Ilki, D Çavunt & YS Çavunt (eds), Building for the Future: Durable, Sustainable, Resilient.: Proceedings of the fib Symposium 2023 - Volume 2. vol. 350, Lecture Notes in Civil Engineering, vol. 350 LNCE, Springer, pp. 552–561, International Symposium of the International Federation for Structural Concrete, fib Symposium 2023, Istanbul, Turkey, 5/06/23. https://doi.org/10.1007/978-3-031-32511-3_58

Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique. / Pan, Tanbo; Zheng, Yonglai; Zhou, Yubao et al.
Building for the Future: Durable, Sustainable, Resilient.: Proceedings of the fib Symposium 2023 - Volume 2. ed. / Alper Ilki; Derya Çavunt; Yavuz Selim Çavunt. Vol. 350 Springer, 2023. p. 552–561 (Lecture Notes in Civil Engineering; Vol. 350 LNCE).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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T1 - Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique

AU - Pan, Tanbo

AU - Zheng, Yonglai

AU - Zhou, Yubao

AU - Wu, Zhuorui

AU - Zhou, Yujue

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2023

Y1 - 2023

N2 - Externally bonded (EB) carbon fiber reinforced polymer (CFRP) is widely used in structural strengthening and retrofitting. Premature debonding of the FRP severely limits the efficiency of CFRP utilization. The application of CRRP anchorage system offers a solution to the debonding problem. However, the understanding of damage mode identification of this combined system still remains elusive. Acoustic emission (AE) technique is employed to identify the damage mode of this CFRP anchorage system, due to its high sensitivity and the ability to detect damage in real-time. The objective of the current study is to identify the failure mechanisms of CFRP-strengthened beam by applying advanced pattern recognition techniques to the collected AE data. Firstly, four-point test of CFRP-strengthened beam was carried out until failure with simultaneous recording of AE signals. Then, correlation analysis was adopted to select the AE characteristic parameters, and principal component analysis (PCA) was used for dimensionality reduction. Lastly, the AE signals of the CFRP-strengthened beam was clustered to track the evolutionary behavior of the different damage modes by Gaussian mixture model (GMM) algorithm. Three main damage modes of CFRP-strengthened beam were identified by GMM clustering: concrete cracking, debonding of CFRP sheet and fracture of CFRP sheet. This study explores the damage evolution mechanism of combined system and provides a basis for achieving health monitoring of CFRP-strengthened structures.

AB - Externally bonded (EB) carbon fiber reinforced polymer (CFRP) is widely used in structural strengthening and retrofitting. Premature debonding of the FRP severely limits the efficiency of CFRP utilization. The application of CRRP anchorage system offers a solution to the debonding problem. However, the understanding of damage mode identification of this combined system still remains elusive. Acoustic emission (AE) technique is employed to identify the damage mode of this CFRP anchorage system, due to its high sensitivity and the ability to detect damage in real-time. The objective of the current study is to identify the failure mechanisms of CFRP-strengthened beam by applying advanced pattern recognition techniques to the collected AE data. Firstly, four-point test of CFRP-strengthened beam was carried out until failure with simultaneous recording of AE signals. Then, correlation analysis was adopted to select the AE characteristic parameters, and principal component analysis (PCA) was used for dimensionality reduction. Lastly, the AE signals of the CFRP-strengthened beam was clustered to track the evolutionary behavior of the different damage modes by Gaussian mixture model (GMM) algorithm. Three main damage modes of CFRP-strengthened beam were identified by GMM clustering: concrete cracking, debonding of CFRP sheet and fracture of CFRP sheet. This study explores the damage evolution mechanism of combined system and provides a basis for achieving health monitoring of CFRP-strengthened structures.

KW - Acoustic emission

KW - CFRP anchorage system

KW - Damage mode identification

KW - Gaussian mixed model clustering

KW - Principal component analysis

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U2 - 10.1007/978-3-031-32511-3_58

DO - 10.1007/978-3-031-32511-3_58

M3 - Conference contribution

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SN - 978-3-031-32513-7

VL - 350

T3 - Lecture Notes in Civil Engineering

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EP - 561

BT - Building for the Future: Durable, Sustainable, Resilient.

A2 - Ilki, Alper

A2 - Çavunt, Derya

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PB - Springer

T2 - International Symposium of the International Federation for Structural Concrete, fib Symposium 2023

Y2 - 5 June 2023 through 7 June 2023

ER -

Pan T, Zheng Y, Zhou Y, Wu Z, Zhou Y. Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique. In Ilki A, Çavunt D, Çavunt YS, editors, Building for the Future: Durable, Sustainable, Resilient.: Proceedings of the fib Symposium 2023 - Volume 2. Vol. 350. Springer. 2023. p. 552–561. (Lecture Notes in Civil Engineering). doi: 10.1007/978-3-031-32511-3_58

Damage Mode Identification of CFRP-Strengthened Beam Based on Acoustic Emission Technique

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Keywords

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