Sensing sheets based on large area electronics for structural health monitoring of bridges

Vivek Kumar, Levent E. Aygun, Naveen Verma, James C. Sturm, Branko Glišić

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

2 Scopus citations

Abstract

Damage characterization often requires direct sensing due to the localization of the anomalous behavior near the cracks. Direct sensing, however, is expensive because of the need to deploy a dense array of individual sensors. Sensing sheets based on Large Area Electronics (LAE) and Integrated Circuits (ICs) are a novel solution to this problem. Such sensing sheets could span several square meters, with a dense array of strain sensors embedded on a polyimide substrate along with the relevant electronics allowing for direct sensing while keeping the costs low. Current studies on LAE based sensing sheets are limited to laboratory experiments. This paper explores the question of suitability of the sensing sheets as a viable option for real-life SHM based on LAE and ICs. Results of laboratory experiments on an aluminum beam are provided to demonstrate the performance of sensing sheets in ideal conditions. Then, the sensing sheets are employed on a pedestrian bridge already equipped with fiber-optic sensors. The strain measurements from the sensing sheets and the fiber-optic sensors are compared and sources of differences are discussed.

Original languageEnglish (US)
Title of host publicationSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019
EditorsJerome P. Lynch, Haiying Huang, Hoon Sohn, Kon-Well Wang
PublisherSPIE
ISBN (Electronic)9781510625952
DOIs
StatePublished - Jan 1 2019
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019 - Denver, United States
Duration: Mar 4 2019Mar 7 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10970
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019
CountryUnited States
CityDenver
Period3/4/193/7/19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • direct damage detection
  • large area electronics(LAE)
  • long-term monitoring of civil structures and infrastructure
  • strain sensing sheets
  • structural health monitoring (SHM)

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  • Cite this

    Kumar, V., Aygun, L. E., Verma, N., Sturm, J. C., & Glišić, B. (2019). Sensing sheets based on large area electronics for structural health monitoring of bridges. In J. P. Lynch, H. Huang, H. Sohn, & K-W. Wang (Eds.), Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019 [109702G] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10970). SPIE. https://doi.org/10.1117/12.2514223