Development of conductive FRP containing carbon phase for self-diagnosis structures

Okuhara, Yoshiki; Shin, Soon Gi; Matsubara, Hideaki; Yanagida, Hiroaki; Takeda, Nobuo

doi:10.1117/12.435534

Cited by 14 publications

(8 citation statements)

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“…Fiber reinforced polymer composites (FRPC) are ranked as advanced materials with highly desired features such as high strength, stiffness, light weight, and corrosion resistance. As a product of two or more constituent materials, fiber/matrix or fiber/matrix/filler, they have a synergy to achieve widely different properties ranging from mechanical integrity, conductivity, electromagnetic interference shielding, and optical sensibility inter alia. This flexibility, present inherently in the nature of composite materials, has provided them niche into as wide application areas as aerospace, marine, automotive, civil construction, and sports industries.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of electrospun nanofiber reinforced/interleaved epoxy matrix composites—A review

et al. 2020

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Electrospinning has by far proved to be the most successful method to spin high aspect and surface area to volume ratio nanofiber for multidisciplinary applications. Its application, however, as reinforcement in fiber reinforced polymer matrix composites (FRPC's) started from interlaminar fracture toughness improvement through interleaving. Since then, its usage both in short fiber and nonwoven mat formation has been phenomenally increased to tailor mechanical properties. This review paper focuses on application of nanofiber in multiscale reinforced epoxy matrix composites for mechanical performance. After a brief overview of electrospinning and spinning parameters, it presents a case for nanofiber as reinforcement with attendant mechanisms to develop insight into nanocomposite performance. Next, it summarizes and shares findings of studies, carried out in last 10 years, seeking to enhance tensile, flexural, interlaminar toughness, impact, and fatigue properties of epoxy composites through electrospun nanofiber reinforcement. Finally, it presents a perspective to gain headways in nanofiber reinforced FRPC's research through a variety of processing and material variables.

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Section: Introductionmentioning

confidence: 99%

Mechanical properties of electrospun nanofiber reinforced/interleaved epoxy matrix composites—A review

et al. 2020

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“…This system presents an interesting "memory" function, in the sense that a residual electrical resistance can be found after cyclic loading, that can be somehow correlated to the maximum stress applied to the material. Moreover, 4 Okuhara et al in [27] and Inada et al al [9] observed that carbon particle type and geometrical shape play a significant role in the self-monitoring behaviour. They showed that the use of graphite carbon flakes is particularly suitable for high sensitivity samples, while the use of spherical carbon black particles increase the material capability to memorize maximum applied load.…”

Section: Introductionmentioning

confidence: 98%

Effect of carbon black nanoparticle intrinsic properties on the self-monitoring performance of glass fibre reinforced composite rods

Nanni

Ruscito

Puglia

et al. 2011

Composites Science and Technology

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Effect of carbon black nanoparticle intrinsic properties on the self-monitoring performance of glass fibre reinforced composite rods, Composites Science and Technology (2010), doi: 10.1016/j.compscitech.2010 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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“…The conductive fiber-reinforced composite, which is glass fiber reinforced plastic added to carbon particles for electrical conductivity, has been confirmed to possess excellent sensitivity as self-diagnosis material 1 . The increase in electrical conductivity is observed against the slight strains.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on structural health monitoring of RC columns using self-diagnosis materials

Ishiguro¹,

Okuhara

Kumagai

2004

Smart Structures and Materials 2004: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems

Self Cite

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The authors have been continuously conducting a series of research works on the development of the fiber reinforced composites as self-diagnosis materials. The function to detect damage is based on the property of carbon materials as a conductor of electricity. The conductive fiber reinforced composite, which is the glass fiber reinforced plastics added carbon particles for electrical conductivity, has been confirmed to possess excellent sensitivity as a self-diagnosis materials. In this study, a self-diagnosis material with the ability to memorize damage history has been applied. Irreversible resistance changes dependent on the strain histories of the composites were utilized to achieve this ability. The authors have also developed an electrically conductive film sensor bonded on the concrete surface to detect cracks and measure crack width. The specimens of the reinforced concrete bridge pier columns were tested under quasi-static cyclic lateral loading. The performance of the proposed self-diagnosis materials to detect damage to concrete structures is evaluated through confirmation of the relationship between the extent of damage and the variation of electrical conductivity of self-diagnosis materials. On the basis of the obtained experimental results, the applicability of selfdiagnosis materials to structural health monitoring for concrete structures are discussed in detail, and the practical monitoring techniques for structures are proposed.

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Development of conductive FRP containing carbon phase for self-diagnosis structures

Cited by 14 publications

References 0 publications

Mechanical properties of electrospun nanofiber reinforced/interleaved epoxy matrix composites—A review

Mechanical properties of electrospun nanofiber reinforced/interleaved epoxy matrix composites—A review

Effect of carbon black nanoparticle intrinsic properties on the self-monitoring performance of glass fibre reinforced composite rods

Experimental study on structural health monitoring of RC columns using self-diagnosis materials

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