Monitoring localized corrosion in reinforced mortar using guided mechanical waves

B. L. Ervin; J. Bernhard; D. A. Kuchma; H. Reis

Monitoring localized corrosion in reinforced mortar using guided mechanical waves

B. L. Ervin, J. Bernhard, D. A. Kuchma, H. Reis

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

Abstract

Guided ultrasonic waves were used to monitor reinforced mortar specimens undergoing accelerated localized corrosion. Longitudinal waves were invoked at higher frequencies (2.5-8.5 MHz) where the attenuation is a local minimum. Using a through transmission configuration, collected waveforms showed an increase in attenuation with increased corrosion damage accumulation. Because the induced localized corrosion did not yield a discontinuity nearly perpendicular to the bar axis, the observed increase in attenuation is mainly due to severe scattering of the incident waves, mode conversions, and reflections at the severely tapered cross-section. As evidence of this phenomenon was the inability of pulse-echo testing to detect reflected waveforms for the induced localized corrosion (i.e., severely tapered cross-section) via accelerated corrosion.

Original language	English (US)
Title of host publication	Structural Health Monitoring 2007
Subtitle of host publication	Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007
Editors	Fu-Kuo Chang
Publisher	DEStech Publications
Pages	516-523
Number of pages	8
ISBN (Electronic)	9781932078718
State	Published - 2007
Event	6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007 - Stanford, United States Duration: Sep 11 2007 → Sep 13 2007

Publication series

Name	Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007
Volume	1

Other

Other	6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007
Country/Territory	United States
City	Stanford
Period	9/11/07 → 9/13/07

ASJC Scopus subject areas

Computer Science Applications
Health Information Management

Library availability

Discover UIUC Full Text

Cite this

Ervin, B. L., Bernhard, J., Kuchma, D. A., & Reis, H. (2007). Monitoring localized corrosion in reinforced mortar using guided mechanical waves. In F.-K. Chang (Ed.), Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007 (pp. 516-523). (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007; Vol. 1). DEStech Publications.

Monitoring localized corrosion in reinforced mortar using guided mechanical waves. / Ervin, B. L.; Bernhard, J.; Kuchma, D. A. et al.
Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. ed. / Fu-Kuo Chang. DEStech Publications, 2007. p. 516-523 (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007; Vol. 1).

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

Ervin, BL, Bernhard, J, Kuchma, DA & Reis, H 2007, Monitoring localized corrosion in reinforced mortar using guided mechanical waves. in F-K Chang (ed.), Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007, vol. 1, DEStech Publications, pp. 516-523, 6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007, Stanford, United States, 9/11/07.

Ervin BL, Bernhard J, Kuchma DA, Reis H. Monitoring localized corrosion in reinforced mortar using guided mechanical waves. In Chang FK, editor, Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. DEStech Publications. 2007. p. 516-523. (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007).

Ervin, B. L. ; Bernhard, J. ; Kuchma, D. A. et al. / Monitoring localized corrosion in reinforced mortar using guided mechanical waves. Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007. editor / Fu-Kuo Chang. DEStech Publications, 2007. pp. 516-523 (Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007).

@inproceedings{7db7c426f894446f9ee08821537caa3e,

title = "Monitoring localized corrosion in reinforced mortar using guided mechanical waves",

abstract = "Guided ultrasonic waves were used to monitor reinforced mortar specimens undergoing accelerated localized corrosion. Longitudinal waves were invoked at higher frequencies (2.5-8.5 MHz) where the attenuation is a local minimum. Using a through transmission configuration, collected waveforms showed an increase in attenuation with increased corrosion damage accumulation. Because the induced localized corrosion did not yield a discontinuity nearly perpendicular to the bar axis, the observed increase in attenuation is mainly due to severe scattering of the incident waves, mode conversions, and reflections at the severely tapered cross-section. As evidence of this phenomenon was the inability of pulse-echo testing to detect reflected waveforms for the induced localized corrosion (i.e., severely tapered cross-section) via accelerated corrosion.",

author = "Ervin, {B. L.} and J. Bernhard and Kuchma, {D. A.} and H. Reis",

note = "Publisher Copyright: Copyright {\textcopyright} 2007 by DEStech Publications, Inc. All Rights Reserved.; 6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007 ; Conference date: 11-09-2007 Through 13-09-2007",

year = "2007",

language = "English (US)",

series = "Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007",

publisher = "DEStech Publications",

pages = "516--523",

editor = "Fu-Kuo Chang",

booktitle = "Structural Health Monitoring 2007",

}

TY - GEN

T1 - Monitoring localized corrosion in reinforced mortar using guided mechanical waves

AU - Ervin, B. L.

AU - Bernhard, J.

AU - Kuchma, D. A.

AU - Reis, H.

PY - 2007

Y1 - 2007

N2 - Guided ultrasonic waves were used to monitor reinforced mortar specimens undergoing accelerated localized corrosion. Longitudinal waves were invoked at higher frequencies (2.5-8.5 MHz) where the attenuation is a local minimum. Using a through transmission configuration, collected waveforms showed an increase in attenuation with increased corrosion damage accumulation. Because the induced localized corrosion did not yield a discontinuity nearly perpendicular to the bar axis, the observed increase in attenuation is mainly due to severe scattering of the incident waves, mode conversions, and reflections at the severely tapered cross-section. As evidence of this phenomenon was the inability of pulse-echo testing to detect reflected waveforms for the induced localized corrosion (i.e., severely tapered cross-section) via accelerated corrosion.

AB - Guided ultrasonic waves were used to monitor reinforced mortar specimens undergoing accelerated localized corrosion. Longitudinal waves were invoked at higher frequencies (2.5-8.5 MHz) where the attenuation is a local minimum. Using a through transmission configuration, collected waveforms showed an increase in attenuation with increased corrosion damage accumulation. Because the induced localized corrosion did not yield a discontinuity nearly perpendicular to the bar axis, the observed increase in attenuation is mainly due to severe scattering of the incident waves, mode conversions, and reflections at the severely tapered cross-section. As evidence of this phenomenon was the inability of pulse-echo testing to detect reflected waveforms for the induced localized corrosion (i.e., severely tapered cross-section) via accelerated corrosion.

UR - http://www.scopus.com/inward/record.url?scp=84945196300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84945196300&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84945196300

T3 - Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007

SP - 516

EP - 523

BT - Structural Health Monitoring 2007

A2 - Chang, Fu-Kuo

PB - DEStech Publications

T2 - 6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007

Y2 - 11 September 2007 through 13 September 2007

ER -

Monitoring localized corrosion in reinforced mortar using guided mechanical waves

Abstract

Publication series

Other

ASJC Scopus subject areas

Library availability

Related links

Fingerprint

Cite this