Using Embedded Fiber Bragg Grating (FBG) Sensors in Smart Aircraft Structure Materials

Ramly, Ramzyzan; Kuntjoro, Wahyu; Rahman, Mohd Azizi Abdul

doi:10.1016/j.proeng.2012.07.218

Cited by 45 publications

(48 citation statements)

References 11 publications

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“…The aircraft manufacturers have been using composite materials in various parts of the aircraft [9].…”

Section: Aircraft Monitoringmentioning

confidence: 99%

“…However, the main problem with sandwich composite is delamination between the core and the facesheet, and this failure occurs underneath the skin and cannot be seen with naked eye [9]. Thus, an efficient cost-saving monitoring system is needed for early damage detection.…”

Section: Aircraft Monitoringmentioning

confidence: 99%

“…FBG sensor array is also used for damage detection as shown in Figure 3. A smart material with embedded multiple FBG sensors has been developed to monitor the impact damage induced delamination between the face-sheet and the honeycomb core of the sandwich composite parts [9]. involving FBG sensors and piezoelectric actuators for detection of impact damages [5] In [9] researchers made 14 honeycomb core sandwich specimens of rectangular shape with carbon fibre face sheets.…”

Section: Aircraft Monitoringmentioning

confidence: 99%

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Review on structural health interrogation using fiber bragg grating sensors

Šķēls

Janeliukštis

Haritonovs

2018

Engineering for Rural Development

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Abstract. Fibre Bragg Grating sensors are optical fibre sensors that are now widely used in civil, mechanical and aerospace engineering for structural health monitoring and damage detection purposes. Typical parameters to be measured are strain and temperature, but also rotation, pressure, vibrations, the distance between stationary and moving or rotating components and concentration of chemical substances can be registered. These sensors have numerous advantages with respect to their piezoelectric counterparts, such as light weight, small dimensions, immunity to electromagnetic interference caused by nearby electronic devices. One of the most notable advantages of Fibre Bragg Grating sensors is the multiplexing capability, meaning that several tens to hundreds of sensors can be stacked together to increase the number of measurement points. This is a key advantage in structural health monitoring and damage detection in aerospace, pavement, bridge and other structures, where numerous points on the structure are subjected to high stresses. Moreover, fibre optical sensors are fully passivethey are capable of functioning without power supply. This review paper deals with highlighting the usage of Fibre Bragg Grating sensors in structural health monitoring and damage detection in various types of structures, namely, civil structures (bridges, pavements) and lightweight structures (aircraft, thin-walled composites), thus underlining a great significance of these sensors in structural safety.Keywords: optical fibre, FBG sensors, damage detection, SHM. Optical sensors overviewOptical fibres consist of two concentric silica layers, namely, the core and the cladding. The small differences in refractive index between both layers ensure the condition of total internal reflection of light inside the fibres, making the optical fibres efficient waveguides. Fibre optical sensors (FOS) comprise the core with a diameter of about 8 µm made of silica doped with germanium oxide and a cladding layer with a diameter of 125 µm made of pure silica. The smallest signal attenuation 0.2 dB/km is achieved at the wavelength of 1.550 nm [1].The essential difference between conventional and fibre optical sensors (FOS) is that FOS are passive -they are capable of fully functioning without power supply. Providing electrical power to the sensor in remote areas for road pavements, bridges or aircraft can be a very difficult task. FOS are sensitive to temperature, pressure, strain, gas concentration, vibrations, the distance between stationary and moving or rotating components, etc. and the raw FOS measurements are in a form of wavelength information, which is analysed and processedto reveal the vital information about the health state of the structure [2]. Optical sensors also provide higher accuracy compared to electronic analogues. This is due to the fact that the light wavelength is much shorter (1.3-1.5 µm) than the radio waves used in wireless systems (in GHz, wavelength measured in centimetres).The most promising type of fibre optic sensors ...

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“…The aircraft manufacturers have been using composite materials in various parts of the aircraft [9].…”

Section: Aircraft Monitoringmentioning

confidence: 99%

Section: Aircraft Monitoringmentioning

confidence: 99%

Section: Aircraft Monitoringmentioning

confidence: 99%

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Review on structural health interrogation using fiber bragg grating sensors

Šķēls

Janeliukštis

Haritonovs

2018

Engineering for Rural Development

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“…Fibre Bragg grating is formed by inducing a periodic modulation of the refractive index in the core of a single mode optical fibre [5,6]. Thus, FBG filters a broadband light, which is transmitted into the fibre core, reflecting light at a single wavelength [7,8]. The form of FBG is changing subject to external micro-mechanical loads and so does the grating spectral response.…”

Section: Optical Fibres With Bragg Gratings Sensorsmentioning

confidence: 99%

Analysis of Fibre Bragg Gratings Sensors Optimal Placement for Monitoring of Damage Propagation in Laminate Composites

Tashkinov¹

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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“…[2,[8][9][10] These are the reasons why composites instrumentation has not been applied at full scale in the industry. [2,[8][9][10] These are the reasons why composites instrumentation has not been applied at full scale in the industry.…”

Section: Introductionmentioning

confidence: 99%

Mode I interlaminar fracture toughness of carbon‐epoxy coupons with embedded ceramic sensors

et al. 2017

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This study analyses the mechanical and crack growth behavior of woven carbon fiber reinforced plastics (CPRF) with embedded ceramic sensors. The material studied here is 3K-70-P carbon fiber plain weave with EPOLAM 2015® epoxy resin. The composite is manufactured with vacuum bagging procedure. Later on, the composite Mode I interlaminar fracture toughness (G IC ) is calculated by means of double cantilever beam tests (DCB) for two layout configurations [0/90] and [±45] with and without embedded sensors. Results give an initial approach of the fracture behavior of an instrumented composite facing an interlaminar crack. The interlaminar fracture toughness for the instrumented specimens is lower compared to the noninstrumented coupons. The presence of the sensor and its wire connection has a considerable impact on the damage tolerance of the woven composite, where the sensors surroundings seem to be the more likely region to be affected by an interlaminar fracture. K E Y W O R D S carbon fibers, delamination, fractography, fracture toughness F I G U R E 5 Load-displacement curve for [±45] double cantilever beam coupons [Colour figure can be viewed at wileyonlinelibrary.com] Reference With Peak load = 105 N, Peak load = 45 N, With How to cite this article: Torres M, Tellez RA, Hernández H, Camps T. Mode I interlaminar fracture toughness of carbon-epoxy coupons with embedded ceramic sensors.

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Using Embedded Fiber Bragg Grating (FBG) Sensors in Smart Aircraft Structure Materials

Cited by 45 publications

References 11 publications

Review on structural health interrogation using fiber bragg grating sensors

Review on structural health interrogation using fiber bragg grating sensors

Analysis of Fibre Bragg Gratings Sensors Optimal Placement for Monitoring of Damage Propagation in Laminate Composites

Mode I interlaminar fracture toughness of carbon‐epoxy coupons with embedded ceramic sensors

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