Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements

F. W. Lee; H. K. Chai; K. S. Lim

Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements

F. W. Lee, H. K. Chai, K. S. Lim

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A non-destructive methodology for evaluating concrete surface breaking crack is developed using multichannel measurements of surface Rayleigh waves (R-waves). Numerical simulations were carried out to understand and analyse propagation behaviour of R-waves in steel-reinforced concrete containing a surface crack with varying depths and degree of inclinations. The change in wave parameters, namely velocity and amplitude were examined and quantified to obtain correlations with the depth and inclination of crack. Experimental measurement on a concrete block specimen was then conducted to validate the effectiveness of the methodology, particularly in cases of crack where the generated R-wave wavelength was greater than the crack depth. Experimental assessment results are found to be in decent agreement with the analytical ones, indicating feasibility of the proposed method to acquire elastic wave data and characterize concrete surface crack by analyzing the change of R-waves parameters.

Original language	English
Title of host publication	Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015)
Editors	S. Vanlanduit, T.P. Philippidis, A. Anastasopoulos, D.G. Aggelis, D. Van Hemelrijck
Publisher	CRC Press
Pages	49-54
Number of pages	6
ISBN (Print)	9781138028845
Publication status	Published - 24 Nov 2015
Event	6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016 - Brussels, Belgium Duration: 27 May 2015 → 29 May 2015

Conference

Conference	6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016
Country/Territory	Belgium
City	Brussels
Period	27/05/15 → 29/05/15

Keywords / Materials (for Non-textual outputs)

Amplitude
Excitation frequency
Inclination
Steel reinforced-concrete
Surface crack depth
Surface Rayleigh waves
Velocity

Cite this

Lee, F. W., Chai, H. K., & Lim, K. S. (2015). Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements. In S. Vanlanduit, T. P. Philippidis, A. Anastasopoulos, D. G. Aggelis, & D. Van Hemelrijck (Eds.), Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015) (pp. 49-54). CRC Press.

Lee, F. W. ; Chai, H. K. ; Lim, K. S. / Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements. Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015). editor / S. Vanlanduit ; T.P. Philippidis ; A. Anastasopoulos ; D.G. Aggelis ; D. Van Hemelrijck. CRC Press, 2015. pp. 49-54

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title = "Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements",

abstract = "A non-destructive methodology for evaluating concrete surface breaking crack is developed using multichannel measurements of surface Rayleigh waves (R-waves). Numerical simulations were carried out to understand and analyse propagation behaviour of R-waves in steel-reinforced concrete containing a surface crack with varying depths and degree of inclinations. The change in wave parameters, namely velocity and amplitude were examined and quantified to obtain correlations with the depth and inclination of crack. Experimental measurement on a concrete block specimen was then conducted to validate the effectiveness of the methodology, particularly in cases of crack where the generated R-wave wavelength was greater than the crack depth. Experimental assessment results are found to be in decent agreement with the analytical ones, indicating feasibility of the proposed method to acquire elastic wave data and characterize concrete surface crack by analyzing the change of R-waves parameters.",

keywords = "Amplitude, Excitation frequency, Inclination, Steel reinforced-concrete, Surface crack depth, Surface Rayleigh waves, Velocity",

author = "Lee, {F. W.} and Chai, {H. K.} and Lim, {K. S.}",

year = "2015",

month = nov,

day = "24",

language = "English",

isbn = "9781138028845",

pages = "49--54",

editor = "S. Vanlanduit and T.P. Philippidis and A. Anastasopoulos and D.G. Aggelis and {Van Hemelrijck}, D.",

booktitle = "Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015)",

publisher = "CRC Press",

note = "6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016 ; Conference date: 27-05-2015 Through 29-05-2015",

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Lee, FW, Chai, HK & Lim, KS 2015, Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements. in S Vanlanduit, TP Philippidis, A Anastasopoulos, DG Aggelis & D Van Hemelrijck (eds), Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015). CRC Press, pp. 49-54, 6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016, Brussels, Belgium, 27/05/15.

Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements. / Lee, F. W.; Chai, H. K.; Lim, K. S.
Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015). ed. / S. Vanlanduit; T.P. Philippidis; A. Anastasopoulos; D.G. Aggelis; D. Van Hemelrijck. CRC Press, 2015. p. 49-54.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements

AU - Lee, F. W.

AU - Chai, H. K.

AU - Lim, K. S.

PY - 2015/11/24

Y1 - 2015/11/24

N2 - A non-destructive methodology for evaluating concrete surface breaking crack is developed using multichannel measurements of surface Rayleigh waves (R-waves). Numerical simulations were carried out to understand and analyse propagation behaviour of R-waves in steel-reinforced concrete containing a surface crack with varying depths and degree of inclinations. The change in wave parameters, namely velocity and amplitude were examined and quantified to obtain correlations with the depth and inclination of crack. Experimental measurement on a concrete block specimen was then conducted to validate the effectiveness of the methodology, particularly in cases of crack where the generated R-wave wavelength was greater than the crack depth. Experimental assessment results are found to be in decent agreement with the analytical ones, indicating feasibility of the proposed method to acquire elastic wave data and characterize concrete surface crack by analyzing the change of R-waves parameters.

AB - A non-destructive methodology for evaluating concrete surface breaking crack is developed using multichannel measurements of surface Rayleigh waves (R-waves). Numerical simulations were carried out to understand and analyse propagation behaviour of R-waves in steel-reinforced concrete containing a surface crack with varying depths and degree of inclinations. The change in wave parameters, namely velocity and amplitude were examined and quantified to obtain correlations with the depth and inclination of crack. Experimental measurement on a concrete block specimen was then conducted to validate the effectiveness of the methodology, particularly in cases of crack where the generated R-wave wavelength was greater than the crack depth. Experimental assessment results are found to be in decent agreement with the analytical ones, indicating feasibility of the proposed method to acquire elastic wave data and characterize concrete surface crack by analyzing the change of R-waves parameters.

KW - Amplitude

KW - Excitation frequency

KW - Inclination

KW - Steel reinforced-concrete

KW - Surface crack depth

KW - Surface Rayleigh waves

KW - Velocity

UR - http://www.scopus.com/inward/record.url?scp=84949844236&partnerID=8YFLogxK

UR - https://www.crcpress.com/Emerging-Technologies-in-Non-Destructive-Testing-VI-Proceedings-of-the/Van-Hemelrijck-Vanlanduit-Anastasopoulos-Philippidis/p/book/9781138028845

M3 - Conference contribution

AN - SCOPUS:84949844236

SN - 9781138028845

SP - 49

EP - 54

BT - Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015)

A2 - Vanlanduit, S.

A2 - Philippidis, T.P.

A2 - Anastasopoulos, A.

A2 - Aggelis, D.G.

A2 - Van Hemelrijck, D.

PB - CRC Press

T2 - 6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016

Y2 - 27 May 2015 through 29 May 2015

ER -

Lee FW, Chai HK, Lim KS. Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements. In Vanlanduit S, Philippidis TP, Anastasopoulos A, Aggelis DG, Van Hemelrijck D, editors, Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing (Brussels, Belgium, 27-29 May 2015). CRC Press. 2015. p. 49-54

Characterization of inclined surface crack in steel reinforced-concrete by multichannel R-wave measurements

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Keywords / Materials (for Non-textual outputs)

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