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Opportunities for Structural health monitoring of composite material structures with novel microstructured optical fiber sensors

Author
Organization
Abstract
The possibility of embedding optical fiber sensors inside carbon fiber reinforced polymer (CFRP) for structural health monitoring purposes has already been demonstrated previously. So far however, the sensitivity of these sensors to transverse load (i.e. out-of-plane load) remained considerably lower than that to axial strain. The design flexibility provided by novel microstructured optical fiber (MOF) technology now allows developing dedicated fibers with substantially enhanced sensitivity to transverse load. We exploited that flexibility and we developed a MOF that, when equipped with a fiber Bragg grating (FBG), leads to a sensor that allows measuring transverse strains in reinforced composite materials, with an order of magnitude increase of the sensitivity over the state-of-the-art. This is confirmed both with experiments on such fibers embedded in CFRP coupons and with finite element simulations. Our sensor brings the achievable transverse strain measurement resolution close to a target value of 1 microstrain (mu epsilon) and could therefore play an important role, not only in the domain of structural health monitoring, but also in the field of composite material production monitoring.
Keywords
Bragg gratings, sensitivity, Hydrostatic-pressure

Citation

Please use this url to cite or link to this publication:

MLA
Berghmans, Francis, et al. “Opportunities for Structural Health Monitoring of Composite Material Structures with Novel Microstructured Optical Fiber Sensors.” STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2, edited by FK Chang, Destech Publications, Inc, 2013, pp. 902–09.
APA
Berghmans, F., Sonnenfeld, C., Sulejmani, S., Geernaert, T., Luyckx, G., Lammens, N., … Thienpont, H. (2013). Opportunities for Structural health monitoring of composite material structures with novel microstructured optical fiber sensors. In F. Chang (Ed.), STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2 (pp. 902–909). 439 Duke Street, Lancaster, USA: Destech Publications, Inc.
Chicago author-date
Berghmans, Francis, Camille Sonnenfeld, Sanne Sulejmani, Thomas Geernaert, Geert Luyckx, Nicolas Lammens, Joris Degrieck, et al. 2013. “Opportunities for Structural Health Monitoring of Composite Material Structures with Novel Microstructured Optical Fiber Sensors.” In STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2, edited by FK Chang, 902–9. 439 Duke Street, Lancaster, USA: Destech Publications, Inc.
Chicago author-date (all authors)
Berghmans, Francis, Camille Sonnenfeld, Sanne Sulejmani, Thomas Geernaert, Geert Luyckx, Nicolas Lammens, Joris Degrieck, Eli Voet, Karima Chac, Francis Collombet, Waclaw Urbanczyk, Pawel Mergo, Martin Becker, Hartmut Bartelt, and Hugo Thienpont. 2013. “Opportunities for Structural Health Monitoring of Composite Material Structures with Novel Microstructured Optical Fiber Sensors.” In STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2, ed by. FK Chang, 902–909. 439 Duke Street, Lancaster, USA: Destech Publications, Inc.
Vancouver
1.
Berghmans F, Sonnenfeld C, Sulejmani S, Geernaert T, Luyckx G, Lammens N, et al. Opportunities for Structural health monitoring of composite material structures with novel microstructured optical fiber sensors. In: Chang F, editor. STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2. 439 Duke Street, Lancaster, USA: Destech Publications, Inc; 2013. p. 902–9.
IEEE
[1]
F. Berghmans et al., “Opportunities for Structural health monitoring of composite material structures with novel microstructured optical fiber sensors,” in STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2, Stanford, CA, 2013, pp. 902–909.
@inproceedings{4370722,
  abstract     = {{The possibility of embedding optical fiber sensors inside carbon fiber reinforced polymer (CFRP) for structural health monitoring purposes has already been demonstrated previously. So far however, the sensitivity of these sensors to transverse load (i.e. out-of-plane load) remained considerably lower than that to axial strain. The design flexibility provided by novel microstructured optical fiber (MOF) technology now allows developing dedicated fibers with substantially enhanced sensitivity to transverse load. We exploited that flexibility and we developed a MOF that, when equipped with a fiber Bragg grating (FBG), leads to a sensor that allows measuring transverse strains in reinforced composite materials, with an order of magnitude increase of the sensitivity over the state-of-the-art. This is confirmed both with experiments on such fibers embedded in CFRP coupons and with finite element simulations. Our sensor brings the achievable transverse strain measurement resolution close to a target value of 1 microstrain (mu epsilon) and could therefore play an important role, not only in the domain of structural health monitoring, but also in the field of composite material production monitoring.}},
  author       = {{Berghmans, Francis and Sonnenfeld, Camille and Sulejmani, Sanne and Geernaert, Thomas and Luyckx, Geert and Lammens, Nicolas and Degrieck, Joris and Voet, Eli and Chac, Karima and Collombet, Francis and Urbanczyk, Waclaw and Mergo, Pawel and Becker, Martin and Bartelt, Hartmut and Thienpont, Hugo}},
  booktitle    = {{STRUCTURAL HEALTH MONITORING 2013, VOLS 1 AND 2}},
  editor       = {{Chang, FK}},
  isbn         = {{9781605951157}},
  keywords     = {{Bragg gratings,sensitivity,Hydrostatic-pressure}},
  language     = {{eng}},
  location     = {{Stanford, CA}},
  pages        = {{902--909}},
  publisher    = {{Destech Publications, Inc}},
  title        = {{Opportunities for Structural health monitoring of composite material structures with novel microstructured optical fiber sensors}},
  year         = {{2013}},
}

Web of Science
Times cited: