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

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Ferreira, MS (Author) Other; Vieira, J (Author) FEUP; Frias, C (Author) Other; Frazao, O (Author) FCUP

Journal

Title: Measurement Science and Technology

Vol. 22 No. 12

Final page: 045206

ISSN: 0957-0233

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 16 Citations

Other information

Authenticus ID: P-002-T18

DOI: 10.1088/0957-0233/22/4/045206

Abstract (EN): 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 degrees C is +/- 0.97 degrees C and for a strain range from 0 to 1100 mu epsilon is +/- 13.04 mu epsilon.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4