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Proceedings Paper

Implementation of a Bragg grating strain rosette embedded in composites
Author(s): Jerome Matrat; Klas Levin; Rolf Jarlas
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Paper Abstract

In the present study, embedded Bragg grating sensors were arranged in a rosette configuration to simultaneously measure the in-plane strain components and the temperature change. The rosette consisted of four optical sensors. The sensors were embedded in neighbouring plies to realise a point-like measurement. Assuming linear thermoelastic behaviour, the relationship between the optical response from each sensor and the strains in the laminate was established. A finite element model was then used to quantify numerically the expected accuracy of the measured strain under various loading conditions.

Paper Details

Date Published: 6 August 2001
PDF: 12 pages
Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); doi: 10.1117/12.435519
Show Author Affiliations
Jerome Matrat, Swedish Defence Reserach Agency (Sweden)
Klas Levin, Swedish Defence Reserach Agency (Sweden)
Rolf Jarlas, Swedish Defence Reserach Agency (Sweden)


Published in SPIE Proceedings Vol. 4328:
Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Eric Udd; Daniele Inaudi, Editor(s)

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