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Real-time through-thickness and in-plane strain measurement in carbon fibre reinforced polymer composites using planar optical Bragg gratings

Real-time through-thickness and in-plane strain measurement in carbon fibre reinforced polymer composites using planar optical Bragg gratings
Real-time through-thickness and in-plane strain measurement in carbon fibre reinforced polymer composites using planar optical Bragg gratings
A new strain sensor is proposed which can measure both through-thickness and in-plane strains within a laminated fibre-reinforced composite material. The planar sensor uses novel embedded planar optic sensors and is demonstrated on a carbon fibre composite test coupon. The planar optical sensor was fabricated via flame hydrolysis deposition and was physically machined to reduce the substrate thickness to <50µm. Strain components are decoupled through monitoring the transverse electric and transverse magnetic effective refractive indices of two orthogonal planar waveguides. The work investigates if the embedded planar sensors have any mechanical knock down effects on the composite structure and demonstrates their effectiveness at decoupling three orthogonal strain components.
0143-8166
Holmes, Christopher
16306bb8-8a46-4fd7-bb19-a146758e5263
Godfrey, Mike
64cac3da-67a6-4ab1-82de-233cc6e47ce9
Bull, Daniel
ea5a1ecb-13cf-4267-a73d-c0c718d0abbf
Dulieu- Barton, Janice
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Holmes, Christopher
16306bb8-8a46-4fd7-bb19-a146758e5263
Godfrey, Mike
64cac3da-67a6-4ab1-82de-233cc6e47ce9
Bull, Daniel
ea5a1ecb-13cf-4267-a73d-c0c718d0abbf
Dulieu- Barton, Janice
9e35bebb-2185-4d16-a1bc-bb8f20e06632

Holmes, Christopher, Godfrey, Mike, Bull, Daniel and Dulieu- Barton, Janice (2020) Real-time through-thickness and in-plane strain measurement in carbon fibre reinforced polymer composites using planar optical Bragg gratings. Optics and Lasers in Engineering. (In Press)

Record type: Article

Abstract

A new strain sensor is proposed which can measure both through-thickness and in-plane strains within a laminated fibre-reinforced composite material. The planar sensor uses novel embedded planar optic sensors and is demonstrated on a carbon fibre composite test coupon. The planar optical sensor was fabricated via flame hydrolysis deposition and was physically machined to reduce the substrate thickness to <50µm. Strain components are decoupled through monitoring the transverse electric and transverse magnetic effective refractive indices of two orthogonal planar waveguides. The work investigates if the embedded planar sensors have any mechanical knock down effects on the composite structure and demonstrates their effectiveness at decoupling three orthogonal strain components.

Text
Real_time_through_thickness_and_in_plane_strain_measurement_in_Carbon_Fibre_Reinforced_Polymer_composites_using_planar_optical_Bragg_gratings - Accepted Manuscript
Restricted to Repository staff only until 25 September 2021.
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More information

In preparation date: 1 November 2019
Submitted date: 2 December 2019
Accepted/In Press date: 25 March 2020

Identifiers

Local EPrints ID: 439489
URI: http://eprints.soton.ac.uk/id/eprint/439489
ISSN: 0143-8166
PURE UUID: f97d6448-9448-4aa5-9fbe-938947b41575
ORCID for Christopher Holmes: ORCID iD orcid.org/0000-0001-9021-3760

Catalogue record

Date deposited: 24 Apr 2020 16:30
Last modified: 18 Feb 2021 17:08

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