Self-Sensing Polymer Composite: White-Light-Illuminated Reinforcing Fibreglass Bundle for Deformation Monitoring

Gergely Hegedus; Tamas Sarkadi; Tibor Czigany

doi:10.3390/s19071745

Sensors (Apr 2019)

Self-Sensing Polymer Composite: White-Light-Illuminated Reinforcing Fibreglass Bundle for Deformation Monitoring

Gergely Hegedus,
Tamas Sarkadi,
Tibor Czigany

Affiliations

Gergely Hegedus: Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Muegyetem rkp. 3, H-1111 Budapest, Hungary
Tamas Sarkadi: Department of Atomic Physics, Faculty of Natural Sciences, Budapest University of Technology and Economics, Budafoki ut. 8, H-1111 Budapest, Hungary
Tibor Czigany: Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Muegyetem rkp. 3, H-1111 Budapest, Hungary

DOI: https://doi.org/10.3390/s19071745
Journal volume & issue: Vol. 19, no. 7
p. 1745

Abstract

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The goal of our research was to develop a continuous glass fibre-reinforced epoxy matrix self-sensing composite. A fibre bundle arbitrarily chosen from the reinforcing glass fabric in the composite was prepared to guide white light. The power of the light transmitted by the fibres changes as a result of tensile loading. In our research, we show that a selected fibre bundle even without any special preparation can be used as a sensor to detect deformation even before the composite structure is damaged (before fibre breaking).

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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