Low-cost electromechanical impedance testing damage detection of submerged civil structures

Shuo Wang, Addie Lederman, Fernando Gomez, Billie F. Spencer, Matthew Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electromechanical (E/M) impedance testing using piezoceramic (PZT) patches adhered to the surface of a substrate structure is regarded as a promising structural health monitoring (SHM) technique due to its ability to detect local and incipient damage in diverse types of structures. E/M impedance testing utilizes the direct/inverse piezoelectric effect, and the PZT patch acts as both sensor and actuator. Any damage done to the substrate structure will change its mechanical impedance, thus further changing the coupled electromechanical impedance of the patch-structure system, which can be measured using impedance analyzers. Research in this field so far has largely been laboratory-based in ideal environmental conditions with impedance measurements taken using bulky and expensive commercial impedance analyzers. Moreover, little has been done for structures submerged in water. This paper investigates the potential for using low-cost electromechanical impedance analyzers for damage detection in submerged civil structures. The goal is to close the critical gap between laboratory development of the E/M impedance testing method and its deployment in the field. A single-board computer (SBC), called Red Pitaya (RP), is used to make high-fidelity impedance measurements and wirelessly communicate with a PC. Damage detection tests are established on steel beams to test RP's efficacy as a SHM tool. Damage detection tests on beams are conducted on submerged specimens and the results demonstrate the potential of using RP for detecting damage in submerged civil structures using low-cost impedance testing.

Original languageEnglish (US)
Title of host publicationStructural Health Monitoring 2019
Subtitle of host publicationEnabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring
EditorsFu-Kuo Chang, Alfredo Guemes, Fotis Kopsaftopoulos
PublisherDEStech Publications Inc.
Pages647-654
Number of pages8
ISBN (Electronic)9781605956015
StatePublished - Jan 1 2019
Event12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019 - Stanford, United States
Duration: Sep 10 2019Sep 12 2019

Publication series

NameStructural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring
Volume1

Conference

Conference12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019
CountryUnited States
CityStanford
Period9/10/199/12/19

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Information Management

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  • Cite this

    Wang, S., Lederman, A., Gomez, F., Spencer, B. F., & Smith, M. (2019). Low-cost electromechanical impedance testing damage detection of submerged civil structures. In F-K. Chang, A. Guemes, & F. Kopsaftopoulos (Eds.), Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring (pp. 647-654). (Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring; Vol. 1). DEStech Publications Inc..