A Biomimetic Structural Health Monitoring Approach Using Carbon Nanotubes

Liu, Yingtao; Rajadas, Abhishek; Chattopadhyay, Aditi

doi:10.1007/s11837-012-0357-6

Cited by 11 publications

(8 citation statements)

References 22 publications

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“…Within the research work of projects A1 and A2 of the Collaborative Research Center SFB 639 carbon fiber (CF) and functionalized glass fiber (GF) are used as sensor fibers. For the application as a sensor usually the electro‐mechanical properties of the sensor material are significant . In case of strain measurement for example it is the electrical resistance of the used sensor material.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Textile Processing of Carbon and Multifunctional Glass Fiber Sensor Yarns for Structural Health Monitoring

et al. 2016

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In this comparative study two sensor yarns, such as carbon filament yarns and carbon nanotube coated glass filament yarns are analyzed regarding their electrical property changes during textile manufacturing into multi-layer weft knitted structures as well as during compression molding into a composite plate due to the different electro-mechanical behavior, various sensitivities, and changing ways of acting as an in-situ sensor: yarns act either as a conductive fiber itself (carbon) or as an electrical conductive sizing (CNT-coated glass). Both sensor yarns under investigation have to be considered differently with regard to changes in the electrical conductivity due to mechanical loading during textile processing and possible healing of cracks during compression molding.

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Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Textile Processing of Carbon and Multifunctional Glass Fiber Sensor Yarns for Structural Health Monitoring

et al. 2016

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“…With sufficient electrical conductivity in a polymer composite, real time monitoring of strain and damage is possible when the composite is loaded [15]. Liu et al [16] showed that the autonomous sensing of single-lap carbon woven composite joints in which MWCNTs and epoxy are used as the joint adhesive is possible. However, reinforcement materials in the adherends and adhesives are highly conductive carbon woven fabrics and conductive silver paint is used for resistance measurement.…”

Section: Introductionmentioning

confidence: 99%

Health Monitoring of Single Lap Joint of Woven Glass Fibre Reinforced Epoxy Composites Modified with MWCNTs

Turan

Aktaş

Gürkan

et al. 2016

Advanced Composites Letters

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In this study, in situ monitoring of single lap joint of woven glass fabric reinforced epoxy composites modified with multiwalled carbon nanotubes (MWCNTs) is presented. Woven glass fibre reinforced/epoxy composite plates modified with 3% wt. highly electrically conductive MWCNTs were manufactured by hand lay-up process for obtaining adherends. MWCNTs were used in 1% and 2% by weight in order to investigate the effect of the MWCNTs level on the shear lap joint strength and the self-sensing sensitivity of bonded area. One, four, and seven plies of adhesive woven cloths were employed for bonding adherends to examine the thickness effect on both the shear lap joint strength and the self-sensing sensitivity of bonded area. In order to provide low electrical contact resistance, woven carbon fibres were placed on the top and bottom of the glass fibre layer during production. Results indicate that the health monitoring of lap joints in the woven glass reinforced epoxy composites can be successfully achieved.

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“…Multiple nanoscale materials, such as pristine carbon nanotubes and functionalized carbon nanotubes [15,16], graphene [17], and nanoscale piezoelectric ceramics [18], have been integrated within polymer matrix systems. By measuring the tailored material properties, such as impedance and electrical resistance, the local strain field and damage conditions can be estimated for laminated composites under simple uniaxial load conditions [19].…”

Section: Introductionmentioning

confidence: 99%

A self-sensing fiber reinforced polymer composite using mechanophore-based smart polymer

Zou

Liu

Chattopadhyay

et al. 2015

Behavior and Mechanics of Multifunctional Materials and Composites 2015

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Polymer matrix composites (PMCs) are ubiquitous in engineering applications due to their superior mechanical properties at low weight. However, they are susceptible to damage due to their low interlaminar mechanical properties and poor heat and charge transport in the transverse direction to the laminate. Moreover, methods to inspect and ensure the reliability of composites are expensive and labor intensive. Recently, mechanophore-based smart polymer has attracted significant attention, especially for self-sensing of matrix damage in PMCs. A cyclobutane-based self-sensing approach using 1,1,1-tris (cinnamoyloxymethyl) ethane (TCE) and poly (vinyl cinnamate) (PVCi) has been studied in this paper. The self-sensing function was investigated at both the polymer level and composite laminate level. Fluorescence emissions were observed on PMC specimens subjected to low cycle fatigue load, indicating the presence of matrix cracks. Results are presented for graphite fiber reinforced composites.

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A Biomimetic Structural Health Monitoring Approach Using Carbon Nanotubes

Cited by 11 publications

References 22 publications

A Comparative Study on the Textile Processing of Carbon and Multifunctional Glass Fiber Sensor Yarns for Structural Health Monitoring

A Comparative Study on the Textile Processing of Carbon and Multifunctional Glass Fiber Sensor Yarns for Structural Health Monitoring

Health Monitoring of Single Lap Joint of Woven Glass Fibre Reinforced Epoxy Composites Modified with MWCNTs

A self-sensing fiber reinforced polymer composite using mechanophore-based smart polymer

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