Implementation of a Bragg grating strain rosette embedded in composites

Jerome Matrat; Klas Levin; Rolf Jarlas

doi:10.1117/12.435519

6 August 2001 Implementation of a Bragg grating strain rosette embedded in composites

Jerome Matrat, Klas Levin, Rolf Jarlas

Proceedings Volume 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (2001) https://doi.org/10.1117/12.435519
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

Jerome Matrat, Klas Levin, and Rolf Jarlas "Implementation of a Bragg grating strain rosette embedded in composites", Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); https://doi.org/10.1117/12.435519

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