Strain measurement of braided composites using cobraided AEFPI fiber optic sensors

Yuan, Shengfang; Rao, Yunjang; Huang, Rui; Liang, Dakai; Xiangkai, Zhen; Wang, Yiping

doi:10.1117/12.444598

Cited by 6 publications

(7 citation statements)

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“…They show that the integrity of 3D woven composite was not affected by the presence of polymer OF. Yuan et al (2004) measured the internal strain of 3D braided composites using co-braided OF sensors. Results showed that optical sensor can be braided into composites to measure internal parameters.…”

Section: Introductionmentioning

confidence: 99%

“…(Hamouda et al, 2015) evaluated the integrity of 3D orthogonal woven composite embedded with polymer optical fibre They show that the integrity of 3D woven composite was not affected by the presence of polymer optical fibre. (Yuan et al, 2004) measured the internal strain of 3D braided composites using co-braided optical fibre sensors. Results showed that optical sensor can be braided into composites to measure internal parameters.…”

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confidence: 99%

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Optimisation of optical fibre using micro-braiding for structural health monitoring

Rufai

Gautam

Potluri

et al. 2018

Journal of Intelligent Material Systems and Structures

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Structural health monitoring is a fast growing area used to assess the state of various structures such as aircraft, building, bridge, wind turbine, pipe, automobile through appropriate data processing and interpretation. This article presents a novel technique of optimising the conventional optical fibres used for structural health monitoring, in order to improve their mechanical properties, and handling during the manufacturing process by micro-braiding the optical fibres. This study investigates and compares the tensile properties of the both micro-braided optical fibre and conventional optical fibres through uniaxial tensile tests. Experimental results show 85% improvement in strain at failure for the micro-braided optical fibre when compared to the optical fibres. Moreover, interfacial shear strength comparison, of the braiding yarn, between optical fibres and micro-braided optical fibre (carried out through micro-bond test) has also been conducted. In addition, the effect of embedding both micro-braided and conventional optical fibre in composite was also investigated by three-point bend test. Overall, the mechanical performance of the composite was not affected by the presence of micro-braided optical fibre. This article will also discuss the process and the advantage of micro-braided optical fibre for structural health monitoring.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Optimisation of optical fibre using micro-braiding for structural health monitoring

Rufai

Gautam

Potluri

et al. 2018

Journal of Intelligent Material Systems and Structures

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“…A method to co-braid optical fibers into braided composites is also reported [ 23 ]. The reported advantage of this method is that the embedded optical fibers will not cause large resin pockets in the material.…”

Section: Composite Materials With Embedded Fiber Sensors: Fabricatmentioning

confidence: 99%

Overview of Fiber Optic Sensor Technologies for Strain/Temperature Sensing Applications in Composite Materials

Ramakrishnan¹,

Rajan

Semenova³

et al. 2016

Sensors

281

124

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This paper provides an overview of the different types of fiber optic sensors (FOS) that can be used with composite materials and also their compatibility with and suitability for embedding inside a composite material. An overview of the different types of FOS used for strain/temperature sensing in composite materials is presented. Recent trends, and future challenges for FOS technology for condition monitoring in smart composite materials are also discussed. This comprehensive review provides essential information for the smart materials industry in selecting of appropriate types of FOS in accordance with end-user requirements.

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“…Pospori et al [ 17 ] investigated the thermal annealing effects on the stress and strain sensitivities of polymer FBG sensors. Optical Fiber sensors can also be used for sensing stress/strain inside of the fibrous composite materials [ 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of a Combined Stress-Vibration Fiber Bragg Grating Sensor

Yao

Lin

Jiang

et al. 2018

Sensors

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A combined stress-vibration sensor was developed to measure stress and vibration simultaneously based on fiber Bragg grating (FBG) technology. The sensor is composed of two FBGs and a stainless steel plate with a special design. The two FBGs sense vibration and stress and the sensor can realize temperature compensation by itself. The stainless steel plate can significantly increase sensitivity of vibration measurement. Theoretical analysis and Finite Element Method (FEM) were used to analyze the sensor’s working mechanism. As demonstrated with analysis, the obtained sensor has working range of 0–6000 Hz for vibration sensing and 0–100 MPa for stress sensing, respectively. The corresponding sensitivity for vibration is 0.46 pm/g and the resulted stress sensitivity is 5.94 pm/MPa, while the nonlinearity error for vibration and stress measurement is 0.77% and 1.02%, respectively. Compared to general FBGs, the vibration sensitivity of this sensor is 26.2 times higher. Therefore, the developed sensor can be used to concurrently detect vibration and stress. As this sensor has height of 1 mm and weight of 1.15 g, it is beneficial for minimization and integration.

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Strain measurement of braided composites using cobraided AEFPI fiber optic sensors

Cited by 6 publications

References 0 publications

Optimisation of optical fibre using micro-braiding for structural health monitoring

Optimisation of optical fibre using micro-braiding for structural health monitoring

Overview of Fiber Optic Sensor Technologies for Strain/Temperature Sensing Applications in Composite Materials

Modeling and Analysis of a Combined Stress-Vibration Fiber Bragg Grating Sensor

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