Inherent sensing and interfacial evaluation of carbon nanofiber and nanotube/epoxy composites using electrical resistance measurement and micromechanical technique

Park, Joung-Man; Kim, Daesik; Kim, Sung‐Ju; Kim, Pyung-Gee; Yoon, Dong‐Jin; DeVries, K. Lawrence

doi:10.1016/j.compositesb.2006.12.004

Cited by 98 publications

(48 citation statements)

References 33 publications

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“…Park et al [1] investigated the sensitivity of carbon nanofiber and nanotube/epoxy composites due to fiber fracture and matrix deformation during electro-pullout tests under cyclic loading. Li and Chou [2] used finite element method to sense the damage of cross-ply glass fiber composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of external loads on damage detection of rubber‐toughened nanocomposites using carbon nanotubes sensory network

Cardoso¹,

O'Connell

Pivonka³

et al. 2014

Polymer Composites

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Multiwalled carbon nanotubes of 0.2% weight fraction are used as a sensory network for detecting and characterizing the damage of particulate epoxy composites under shear loading conditions. Three different weight fractions of carboxyl-terminated butadiene acrylonitrile copolymer rubber [10 parts per hundred of epoxy resin (phr), 20 phr, and 30 phr] are used for toughening a thermoset epoxy composite. The electrical response of the specimens is measured, nearest the central shearing plane, using a four-circumferential ring probe technique in conjunction with a high-resolution data acquisition system. A collection of the electromechanical response results are reported with respect to the shear strain. The resistance changes observed under shear loading are related to nonlinear deformation mechanisms, void initiation, and growth around rubber particulate. With increasing rubber content, the strength of the material decreases and a greater drop in resistance is recorded as a result of decreased distance between neighboring carbon nanotubes (CNTs) due to declustering and straightening of molecular chains of host matrix. In the end, a comparison for 30 phr composites under shear loading with that of tensile and compression loading conditions is presented. For initial deformation, there is no change in resistance under shear loading condition; however, the significant resistance change can be noticed under both tension and compression. The specimen under shear loading conditions experiences smaller decrease in resistance when compared with both tension and compression. However, the decrease in resistance is higher for compression due to higher decrease in distance between neighboring CNTs. POLYM. COMPOS., 37:360-369, 2016.

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Section: Introductionmentioning

confidence: 99%

Effect of external loads on damage detection of rubber‐toughened nanocomposites using carbon nanotubes sensory network

Cardoso¹,

O'Connell

Pivonka³

et al. 2014

Polymer Composites

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“…Schulte et al were the first in exploring the suitability of percolated CNT networks for health monitoring of continuous glass fibre/epoxy composites [7] and in the recent years numerous studies have followed dealing with different aspects of in-situ strain sensing by recording the change in electrical resistance upon variation of mechanical strain [8,9].The sensitivity of CNT networks with regard to the onset of matrix dominated failure and the failure propagation could be demonstrated [10,11] as well as the possibility to monitor the fatigue life of glass fibre (GF) reinforced epoxy composites [12]. The current state of research related to sensing with CNTs has been comprehensively reviewed by Chou et al [13,14].…”

Section: Introductionmentioning

confidence: 99%

Health monitoring in continuous glass fibre reinforced thermoplastics: Manufacturing and application of interphase sensors based on carbon nanotubes

Rausch

Mäder

2010

Composites Science and Technology

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To cite this version:J. Rausch, E. Mäder. Health monitoring in continuous glass fibre reinforced thermoplastics: Manufacturing and application of interphase sensors based on carbon nanotubes. Composites Science and Technology, Elsevier, 2010, 70 (11), pp.1589. 10.1016/j.compscitech.2010 Accepted Manuscript This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ACCEPTED MANUSCRIPT AbstractIn this study, a new approach for health monitoring of GF reinforced composites is presented by incorporating percolated carbon nanotubes (CNTs) into the composites interphase. This is achieved applying CNT-filled coatings to glass fibres (GF). Taking advantage of the electrical properties of CNTs, this allows a highly localized monitoring of the composites interphase.The approach is largely independent on matrix material and can be applied to thermoplastic or thermoset resin matrix materials with minor adjustments. The resistance of CNT-coated GF yarns shows a linear dependence on the yarn length and depends on the CNT weight fraction of the coating, as well as on the amount of coating on the GF yarn. Performing tensile tests in combination with simultaneous resistance measurements on CNT-coated GF yarns embedded in a polypropylene matrix, the interphase behaviour during mechanical loading is monitored, providing information on this specific area. This allows relating interphase failure or GF breakage to the resistance data and demonstrates the potential of this approach for health monitoring of GF reinforced composites.

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“…For CNT-filled nanocomposites it has been shown that resistance change data follows the displacement of the system and allows monitoring the systems deformation as well as the occurrence of micro cracks [5,6,9,23,29]. Similarly to the results shown in figure 4, the resistance change during cyclic loading between 0 and 20 MPa is displayed in figure 5.…”

Section: Cycling Loading Of the Interphase Sensor And Assessment Of Imentioning

confidence: 52%

“…Some years later, additional studies appeared dealing with several aspects of resistance change measurements in conjunction with GF reinforced CNTfilled epoxy composites. Within this context, the sensitivity of CNT-filled systems upon mechanical loading was compared with carbon black filled systems [5,6]. The results are diverging, as one study claims a higher sensitivity of CNT-modified systems, whereas the other found carbon black to result in improved resistivity.…”

Section: Introductionmentioning

confidence: 97%

Health monitoring in continuous glass fibre reinforced thermoplastics: Tailored sensitivity and cyclic loading of CNT-based interphase sensors

Rausch

Mäder

2010

Composites Science and Technology

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To cite this version:J. Rausch, E. Mäder. Health monitoring in continuous glass fibre reinforced thermoplastics: Tailored sensitivity and cyclic loading of CNT-based interphase sensors. Composites Science and Technology, Elsevier, 2010, 70 (13), pp.2023. 10.1016/j.compscitech.2010 Accepted Manuscript This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Inherent sensing and interfacial evaluation of carbon nanofiber and nanotube/epoxy composites using electrical resistance measurement and micromechanical technique

Cited by 98 publications

References 33 publications

Effect of external loads on damage detection of rubber‐toughened nanocomposites using carbon nanotubes sensory network

Effect of external loads on damage detection of rubber‐toughened nanocomposites using carbon nanotubes sensory network

Health monitoring in continuous glass fibre reinforced thermoplastics: Manufacturing and application of interphase sensors based on carbon nanotubes

Health monitoring in continuous glass fibre reinforced thermoplastics: Tailored sensitivity and cyclic loading of CNT-based interphase sensors

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