Application of embedded fibre Bragg grating sensors for structural health monitoring of complex composite structures for marine applications

Mieloszyk, Magdalena; Majewska, Katarzyna; Ostachowicz, Wiesław

doi:10.1016/j.marstruc.2020.102903

Cited by 79 publications

(47 citation statements)

References 23 publications

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“…Also, the complex honeycomb structure and the damping made the signal processing a challenge. In an extension of this work, the authors used embedded sensors for impact detection in a sandwich panel [150], with similar results.…”

Section: Impact Localizationmentioning

confidence: 63%

Optical Fiber Sensors for Ultrasonic Structural Health Monitoring: A Review

Soman

Wee

Peters

2021

Sensors

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Guided waves (GW) and acoustic emission (AE) -based structural health monitoring (SHM) have widespread applications in structures, as the monitoring of an entire structure is possible with a limited number of sensors. Optical fiber-based sensors offer several advantages, such as their low weight, small size, ability to be embedded, and immunity to electro-magnetic interference. Therefore, they have long been regarded as an ideal sensing solution for SHM. In this review, the different optical fiber technologies used for ultrasonic sensing are discussed in detail. Special attention has been given to the new developments in the use of FBG sensors for ultrasonic measurements, as they are the most promising and widely used of the sensors. The paper highlights the physics of the wave coupling to the optical fiber and explains the different phenomena such as directional sensitivity and directional coupling of the wave. Applications of the different sensors in real SHM applications have also been discussed. Finally, the review identifies the encouraging trends and future areas where the field is expected to develop.

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Section: Impact Localizationmentioning

confidence: 63%

Optical Fiber Sensors for Ultrasonic Structural Health Monitoring: A Review

Soman

Wee

Peters

2021

Sensors

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“…Several examples of usage of the FBG sensors written in standard single mode fibers (SMF) and their integration with composite materials for SHM applications can be found in the literature [ 1 , 7 , 8 , 9 , 10 , 11 ]. FBG sensors were integrated for monitoring of high pressure hydrogen composite vessels [ 12 , 13 ], blades of wind turbine [ 9 ], fast patrol boat [ 14 ], or a component of an aircraft [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

In-Plane Strain Measurement in Composite Structures with Fiber Bragg Grating Written in Side-Hole Elliptical Core Optical Fiber

et al. 2021

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In this paper, the application of a fiber Bragg grating written in a highly birefringent side-hole elliptical core optical fiber for two-axial strain measurement is presented. Hybrid optical fiber structures achieved by combining large side-holes and elliptical core result in a very high birefringence of 1 × 10−3 and thus high initial Bragg peak spectral separation of 1.16 nm, as well as a very high transverse force sensitivity, of up to 650 pm/(N/mm) or even −1150 pm/(N/mm), depending on the fiber orientation with respect to the applied force. Due to the ~22 %m/m GeO2 concentration in the core the fiber being highly photosensitive, which significantly simplifies FBG fabrication by UV illumination without the need for prior hydrogen loading, which worsens thermal stability. Finally, the developed FBGs written in the highly birefringent side-hole elliptical core optical fiber were embedded in the square composite plates and applied for strain measurements. Tests of two-directional four-point bending have shown usability of such FBG for two-axial in-plane strain measurement with a single FBG in iso-thermal conditions.

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“…The most important advantages of FBG sensors are their small size, high multiplexing capabilities, corrosion resistance, and lack of calibration needs [5]. FBG sensors can be mounted on structure surfaces [6][7][8], as well as embedded into the material during its manufacturing [9,10]. At present, FBG sensors are integral parts of the SHM systems installed on different structures: bridges [10], offshore platforms [11][12][13], buildings [14][15][16], marine vessels [9,17,18].…”

Section: Introductionmentioning

confidence: 99%

“…FBG sensors can be mounted on structure surfaces [6][7][8], as well as embedded into the material during its manufacturing [9,10]. At present, FBG sensors are integral parts of the SHM systems installed on different structures: bridges [10], offshore platforms [11][12][13], buildings [14][15][16], marine vessels [9,17,18]. In aircraft structures, FBG sensors are mostly used to monitor fuselage parts [19][20][21], aircraft cockpit [6] or composite wings [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Crack Propagation Monitoring Using Fibre Bragg Grating Sensors

Mieloszyk

2021

Vibration

Self Cite

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The paper presents the analysis of the possibility of fatigue crack detection and monitoring its propagation process using fibre Bragg grating (FBG) sensors. The investigations were carried out on an aluminium alloy sample (a part of the Mi-2 helicopter rotor blade). During the fatigue test, the sample was equipped with FBG sensors applied for strain measurement and the vibration-based strain monitoring. It was observed that the strain curves determined by the FBG sensors agreed well with the fatigue force profile. However, the strain curves were almost insensitive to the crack propagation process, except in the last stage of the test, when the crack length was equal to 25 mm. The strain values and the natural frequencies of the sample that were determined experimentally were compared with the values achieved from the finite element method model, with both methods showing good agreement. Additionally, spectrogram-based analyses were performed, focused on the acoustic waves phenomena related to a crack propagation process. It was confirmed that the proposed signal processing method, based on spectrogram analyses, can be applied for the detection of fatigue crack development in metal structures.

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Application of embedded fibre Bragg grating sensors for structural health monitoring of complex composite structures for marine applications

Cited by 79 publications

References 23 publications

Optical Fiber Sensors for Ultrasonic Structural Health Monitoring: A Review

Optical Fiber Sensors for Ultrasonic Structural Health Monitoring: A Review

In-Plane Strain Measurement in Composite Structures with Fiber Bragg Grating Written in Side-Hole Elliptical Core Optical Fiber

Fatigue Crack Propagation Monitoring Using Fibre Bragg Grating Sensors

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