Self-Sensing Composites: In-Situ Detection of Fibre Fracture

Malik, Shoaib Ahmad; Wang, Liwei; Curtis, P.; Fernando, Gerard Franklyn

doi:10.3390/s16050615

Cited by 11 publications

(10 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They showed that the intensity of the transmitted light changed as a result of loading. Malik et al [ 19 , 21 ] investigated the light transmission properties of custom-made small-diameter optical fibers built into composites during tensile tests. The size of the optical fibers was similar to the size of the reinforcing fibers.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Light Transmission Ability of Reinforcing Glass Fibers Used in Polymer Composites

2017

View full text Add to dashboard Cite

This goal of our research was to show that E-glass fiber bundles used for reinforcing composites can be enabled to transmit light in a common resin without any special preparation (without removing the sizing). The power of the transmitted light was measured and the attenuation coefficient, which characterizes the fiber bundle, was determined. Although the attenuation coefficient depends on temperature and the wavelength of the light, it is independent of the power of incident light, the quality of coupling, and the length of the specimen. The refractive index of commercially available transparent resins was measured and it was proved that a resin with a refractive index lower than that of the fiber can be used to make a composite whose fibers are capable of transmitting light. The effects of temperature, compression of the fibers, and the shape of fiber ends on the power of transmitted light were examined. The measurement of emitted light can provide information about the health of the fibers. This can be the basis of a simple health monitoring system in the case of general-purpose composite structures.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of the Light Transmission Ability of Reinforcing Glass Fibers Used in Polymer Composites

2017

View full text Add to dashboard Cite

show abstract

“…One of the main advantages of the optical fiber sensor is its thinness. It usually has a diameter of 125μm, but OFS with a diameter of up to 12μm have also been reported (Malik et al 2016). This makes it easy to integrate them in materials like composite materials.…”

Section: Introductionmentioning

confidence: 99%

Strain Monitoring

Vanlanduit

Sorgente²,

Zadeh³

et al. 2021

Structural Health Monitoring Damage Detection Systems for Aerospace

View full text Add to dashboard Cite

This chapter provides an overview of the use of strain sensors for structural health monitoring. Compared to acceleration-based sensors, strain sensors can measure the deformation of a structure at very low frequencies (up to DC) and enable the measurement of ultrasonic responses. Many existing SHM methods make use of strain measurement data. Furthermore, strain sensors can be easily integrated in (aircraft) structures. This chapter discusses the working principle of traditional strain gauges (Sect. 8.1) and different types of optical fiber sensors (Sect. 8.2). The installation requirements of strain sensors and the required hardware for reading out sensors are provided. We will also give an overview of the advantages and the limitations of commonly used strain sensors. Finally, we will present an overview of the applications of strain sensors for structural health monitoring in the aeronautics field.

show abstract

“…The reinforcing glass fibres of composites differ from optical fibres in design and manufacturing technology, but since the refractive indexes of different resin systems vary in a wide range [12], they can be built into matrix materials that have a lower refractive index than the reinforcing glass fibre and can be made to transmit light [13][14][15][16], and this makes them suitable for structural health monitoring, as we showed earlier [17]. Using reinforcing fibres for health monitoring makes the composite multifunctional [18,19].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional composite: Reinforcing fibreglass bundle for deformation self-sensing

Hegedűs

Sarkadi

Czigány

2019

Composites Science and Technology

View full text Add to dashboard Cite

Our goal was to develop a multifunctional continuous glass fibre reinforced epoxy matrix composite, in which deformation is measured with the use of an arbitrarily chosen fibre bundle. To do this, we made the reinforcing fibre bundle suitable for transmitting light and showed that the intensity of light transmitted by the illuminated bundles changes as a result of deformation. This way, the reinforcing rovings of the composite can become a health monitoring sensor indicating external load.

show abstract

Self-Sensing Composites: In-Situ Detection of Fibre Fracture

Cited by 11 publications

References 52 publications

Analysis of the Light Transmission Ability of Reinforcing Glass Fibers Used in Polymer Composites

Analysis of the Light Transmission Ability of Reinforcing Glass Fibers Used in Polymer Composites

Strain Monitoring

Multifunctional composite: Reinforcing fibreglass bundle for deformation self-sensing

Contact Info

Product

Resources

About