Journal ArticleDOI
Finite element stress and strain analysis in composites with embedded optical fiber sensors
N C Eaton,R. C. Drew,H Geiger +2 more
TLDR
In this paper, the authors used finite element techniques to analyse the mechanical stress and strain concentrations in and around an optical fiber embedded in a composite laminate and failure analysis was performed.Abstract:
Advanced finite element techniques are used to analyse the mechanical stress and strain concentrations in and around an optical fibre embedded in a composite laminate. The models represent many features observed in real materials with embedded optical fibres. Three general laminate constructions were analysed with the optical fibre at the mid-plane and near the laminate surface. The models represent test coupons that are used to measure the effects of the embedded optical fibre on the laminate strength in tension and flexure; the applied loads and boundary conditions reflect these tests. Failure analysis is performed.read more
Citations
More filters
Journal ArticleDOI
Embedded fibre Bragg grating sensors in advanced composite materials
TL;DR: In this paper, the post-fabrication FBG spectra were studied to examine the influence of manufacturing variables (such as composite stacking sequence and resin flow during processing) on the final profile of the spectrum and the functionality of the sensor.
Journal ArticleDOI
Use of conventional optical fibers and fiber Bragg gratings for damage detection in advanced composite structures: A review
Ksc Kuang,Wesley J. Cantwell +1 more
Journal ArticleDOI
Multi-axial strain transfer from laminated CFRP composites to embedded Bragg sensor: I. Parametric study
TL;DR: In this paper, a finite element model of a circular isotropic glass fiber embedded in an anisotropic composite material is used to determine the multi-axial strain transfer from the host material to the embedded sensor.
Journal ArticleDOI
Experimental investigation of the effect of the mould thermal expansion on the development of internal stresses during carbon fibre composite processing
R. de Oliveira,S. Lavanchy,Rodrigue Chatton,D. Costantini,Véronique Michaud,René Paul Salathé,Jan-Anders E. Månson +6 more
TL;DR: In this article, the influence of the mold material on the build-up of internal stresses during autoclave cure of carbon fiber composites was investigated using embedded optical fibre Bragg gratings.
Journal ArticleDOI
The effects of embedded piezoelectric fiber composite sensors on the structural integrity of glass-fiber-epoxy composite laminate
TL;DR: In this article, the effects of embedding PFCS sensors (macro-fiber composite (MFC) and piezoelectric fiber composite (PFC)) on the structural integrity of composite laminates were compared.
References
More filters
Journal ArticleDOI
Longitudinal shear transfer in fiber optic sensors
TL;DR: In this paper, a coated optical fiber embedded in a host composite matrix is analyzed to study the strain transfer to, and the stress and strain concentrations caused by, the optical fiber.
Proceedings ArticleDOI
Phase-strain-temperature model for structurally embedded interferometric optical fiber strain sensors with applications
TL;DR: In this paper, the fundamental theory which relates optical phase changes to applied strain and temperature fields in structurally embedded interferometric optical fiber sensors of all types is described, and applied to Mach-Zehnder, Michelson, intrinsic and extrinsic Fabry-Perot, polarimetric, and modal-domain sensors.
Proceedings ArticleDOI
Finite element analysis of composite laminates containing transversely embedded optical fiber sensors
R. Davidson,S. S. J. Roberts +1 more
TL;DR: In this article, finite element analysis techniques have been used to predict the stress concentrations around optical fibres embedded transversely to the reinforcement in unidirectional and cross-ply CFRP laminates with thermoplastic PEEK matrices.
Related Papers (5)
Structural integrity of composite laminates with interlaced actuators
D A Singh,Anthony J. Vizzini +1 more
Monotonic and fatigue loading behavior of quasi-isotropic graphite/epoxy laminate embedded with piezoelectric sensor
Shankar Mall,J M Coleman +1 more