Simultaneous measurement of strain and temperature using fiber Bragg grating sensors embedded in hybrid composite laminates

M. S. Ferreira, J. Vieira, C. Frias, O. Frazo

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The use of fiber Bragg grating sensors embedded in hybrid composite laminates for simultaneous measurement of strain and temperature is proposed. The hybrid structure, formed by a pre-impregnated thermoset and thermoplastic composites, contains one single fiber Bragg grating embedded in each material, connected in series with each other. A different response is observed when the smart composite laminate is subjected to strain and to temperature. This is expected due to the distinct properties presented by each material. The rms deviation obtained for a temperature range between 20 and 60 °C is 0.97 °C and for a strain range from 0 to 1100 νε is 13.04 νε. © 2011 IOP Publishing Ltd.
    Original languageEnglish
    Article number045206
    JournalMeasurement Science and Technology
    Volume22
    Issue number4
    DOIs
    Publication statusPublished - Apr 2011

    Keywords

    • optical fiber sensors
    • smart composite materials
    • thermoset and thermoplastic materials

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