Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors
Designing of new generation offshore wind turbine blades is a great challenge as size of blades are getting larger (typically larger than 100 m). Structural Health Monitoring (SHM), which uses embedded Fiber Optics Sensors (FOSs), is incorporated in critical stressed zones such as trailing edges and...
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doaj-61897586434e4f94b43a661f27c8ad692020-11-25T00:02:24ZengMDPI AGSensors1424-82202019-02-0119374210.3390/s19030742s19030742Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber SensorsVenkadesh Raman0Monssef Drissi-Habti1Preshit Limje2Aghiad Khadour3PRES LUNAM IFSTTAR CS4 Route de Bouaye, 44344 Bouguenais, FrancePRES LUNAM IFSTTAR CS4 Route de Bouaye, 44344 Bouguenais, FrancePRES LUNAM IFSTTAR CS4 Route de Bouaye, 44344 Bouguenais, FranceComponents and Systems Department, Université Paris-Est, IFSTTAR, 77420 Champs-sur-Marne, FranceDesigning of new generation offshore wind turbine blades is a great challenge as size of blades are getting larger (typically larger than 100 m). Structural Health Monitoring (SHM), which uses embedded Fiber Optics Sensors (FOSs), is incorporated in critical stressed zones such as trailing edges and spar webs. When FOS are embedded within composites, a ‘penny shape’ region of resin concentration is formed around the section of FOS. The size of so-formed defects are depending on diameter of the FOS. Penny shape defects depend of FOS diameter. Consequently, care must be given to embed in composites reliable sensors that are as small as possible. The way of FOS placement within composite plies is the second critical issue. Previous research work done in this field (1) investigated multiple linear FOS and sinusoidal FOS placement, as well. The authors pointed out that better structural coverage of the critical zones needs some new concepts. Therefore, further advancement is proposed in the current article with novel FOS placement (anti-phasic sinusoidal FOS placement), so as to cover more critical area and sense multi-directional strains, when the wind blade is in-use. The efficiency of the new positioning is proven by numerical and experimental study.https://www.mdpi.com/1424-8220/19/3/742fiber optic sensorstructural health monitoring (SHM)smart composite materialfinite element analysis (FEA)strain sensingnumerical modeling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Venkadesh Raman Monssef Drissi-Habti Preshit Limje Aghiad Khadour |
spellingShingle |
Venkadesh Raman Monssef Drissi-Habti Preshit Limje Aghiad Khadour Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors Sensors fiber optic sensor structural health monitoring (SHM) smart composite material finite element analysis (FEA) strain sensing numerical modeling |
author_facet |
Venkadesh Raman Monssef Drissi-Habti Preshit Limje Aghiad Khadour |
author_sort |
Venkadesh Raman |
title |
Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors |
title_short |
Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors |
title_full |
Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors |
title_fullStr |
Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors |
title_full_unstemmed |
Finer SHM-Coverage of Inter-Plies and Bondings in Smart Composite by Dual Sinusoidal Placed Distributed Optical Fiber Sensors |
title_sort |
finer shm-coverage of inter-plies and bondings in smart composite by dual sinusoidal placed distributed optical fiber sensors |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2019-02-01 |
description |
Designing of new generation offshore wind turbine blades is a great challenge as size of blades are getting larger (typically larger than 100 m). Structural Health Monitoring (SHM), which uses embedded Fiber Optics Sensors (FOSs), is incorporated in critical stressed zones such as trailing edges and spar webs. When FOS are embedded within composites, a ‘penny shape’ region of resin concentration is formed around the section of FOS. The size of so-formed defects are depending on diameter of the FOS. Penny shape defects depend of FOS diameter. Consequently, care must be given to embed in composites reliable sensors that are as small as possible. The way of FOS placement within composite plies is the second critical issue. Previous research work done in this field (1) investigated multiple linear FOS and sinusoidal FOS placement, as well. The authors pointed out that better structural coverage of the critical zones needs some new concepts. Therefore, further advancement is proposed in the current article with novel FOS placement (anti-phasic sinusoidal FOS placement), so as to cover more critical area and sense multi-directional strains, when the wind blade is in-use. The efficiency of the new positioning is proven by numerical and experimental study. |
topic |
fiber optic sensor structural health monitoring (SHM) smart composite material finite element analysis (FEA) strain sensing numerical modeling |
url |
https://www.mdpi.com/1424-8220/19/3/742 |
work_keys_str_mv |
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