Structural Health Monitoring system of composite beams with surface bonded and embedded Fibre Bragg Grating sensors

Date

2017-01-15

Author

Deǧerliyurt, Boray
Karataş, Cansu
Şahin, Melin
Yaman, Yavuz

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

179
views

0
downloads

Fibre Bragg Grating (FBG) sensors are frequently being used for Structural Health Monitoring (SHM) of aerospace structures. One of the most important advantages of using FBG sensors is that it is possible to embed them into composites. In this paper, manufacturing methods of composite specimens with embedded FBG sensors are given. To avoid stress concentrations at ingress/egress regions of fibre optic wires, PTFE (Teflon) tubes were used during manufacturing. Moreover, FBG connectors melt at high curing temperatures. Therefore, those connectors were cut and after manufacturing, these connectors were spliced back to the FBG sensors. Embedded FBG’s were then checked and the correct wavelength data were taken. All the sensors were observed as intact and ready for bending tests. Procedure for bending tests is also explained including applied loads, boundary conditions, test setup and the peripheral equipment. Results of bending tests show that the system is an appropriate one for SHM purposes.

Subject Keywords

Composites, Embedded sensor, Experiment, Fibre bragg grating, Manufacturing

URI

https://hdl.handle.net/11511/35120

DOI

https://doi.org/10.4028/www.scientific.net/kem.744.332

Collections

Department of Aerospace Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

TORSION TEST OF COMPOSITE BEAMS USING FIBER BRAGG GRATING SENSORS FOR STRUCTURAL HEALTH MONITORING APPLICATIONS Karataş, Cansu; Değerliyurt, Boray; Yaman, Yavuz; Şahin, Melin (null; 2017-09-23) Fiber Bragg Grating sensors are commonly being used for Structural Health Monitoring of aeronautical structures. Fiber Bragg Grating sensors are convenient especially for Structural Health Monitoring of composite structures, such as helicopter blades and wind turbine blades, considering the ability of embedment between the layers. In this study, a Structural Health Monitoring system of composite beams equipped with surface bonded and embedded Fiber Bragg Grating sensors is introduced. Torsion tests of the c...
Finite element analysis and tests of composite beams with fiber bragg grating sensors under torsional load for structural health monitoring applications Karataş, Cansu; Yaman, Yavuz; Department of Aerospace Engineering (2017) In this thesis, feasibility of Fiber Bragg Grating sensors for Structural Health Monitoring applications of composite structures is studied. The method and essentials for the manufacturing process of composite beams with embedded Fiber Bragg Grating sensors are presented. Composite beams instrumented with surface bonded and embedded Fiber Bragg Grating sensors are tested under static torsional load. In addition, Finite Element Analyses of composite beams under torsional load is conducted using the commercia...
Development and experimental verification of a structural health monitoring system for composite beams with embedded fibre bragg grating sensors Değerliyurt, Boray; Şahin, Melin; Department of Aerospace Engineering (2017) Structural Health Monitoring (SHM) is a discipline of development and application of monitoring and detecting adverse changes and damage in a structure in operation. This study explains development of a SHM system of composite beams with embedded Fibre Bragg Grating (FBG) sensors and its verification through experiments. There are considerations that require attention during manufacturing of composite specimens with embedded sensors. During manufacturing, protective teflon tubes are added to the ingress and...
FIBER BRAGG GRATING SENSOR APPLICATIONS FOR STRUCTURAL HEALTH MONITORING Karataş, Cansu; Değerliyurt, Boray; Yaman, Yavuz; Şahin, Melin (2017-09-30) A well-known structural health monitoring method used to detect and locate damage in civil engineering structures is vibration-based damage identification. It typically monitors the civil structure over time to spot slow or sudden changes in its natural frequencies, damping factors or modal displacements. This approach can prove very powerful, but the sensitivity of those properties to local damage can be rather low. In addition, their cross-sensitivity to environmental influences may completely mask the ef...
Comparative evaluation of steel mesh, steel fibre and high-performance polypropylene fibre reinforced shotcrete in panel test Cengiz, O; Turanlı, Lutfullah (2004-08-01) In this study, experimental investigations were performed on steel mesh (SM), steel fibre (SF) and high-performance polypropylene fibre (HPPF) reinforced shotcrete (HPPFRS) panels to evaluate performance characteristics such as toughness, flexural ductility, energy absorption and load capacity. The panel tests, in accordance with European specification for sprayed concrete (EFNARC), were made on 18 prismatic specimens having the same mix designs and were cured for 28 days but reinforced with various fibres....

Citation Formats

B. Deǧerliyurt, C. Karataş, M. Şahin, and Y. Yaman, “Structural Health Monitoring system of composite beams with surface bonded and embedded Fibre Bragg Grating sensors,” 2017, vol. 744, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35120.