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Induction heating of carbon fiber composites: Investigation of electrical and thermal properties

Lundström, Fredrik LU ; Frogner, Kenneth LU ; Wiberg, Oscar; Cedell, Tord LU and Andersson, Mats LU (2017) In International Journal of Applied Electromagnetics and Mechanics 53(S1). p.21-30
Abstract (Swedish)
Carbon fiber reinforced plastics, CFRP, are attractive materials not only because of their strength and stiffness but also because of their electrical conductivity and high thermal conductivity and diffusivity. One application where induction heating of CFRP is particularly interesting is tools for fast thermal cycling, beneficial inmany industrial processes, for example in composite manufacturing. The electrical properties make it possible to heat with induction and the high thermal conductivity allows fast heat equalization. In order to control inducting heating of CFRP it is desirable to know the electrical and thermal properties of the composite. This work presents developed experimental methods that are used in an investigation of how... (More)
Carbon fiber reinforced plastics, CFRP, are attractive materials not only because of their strength and stiffness but also because of their electrical conductivity and high thermal conductivity and diffusivity. One application where induction heating of CFRP is particularly interesting is tools for fast thermal cycling, beneficial inmany industrial processes, for example in composite manufacturing. The electrical properties make it possible to heat with induction and the high thermal conductivity allows fast heat equalization. In order to control inducting heating of CFRP it is desirable to know the electrical and thermal properties of the composite. This work presents developed experimental methods that are used in an investigation of how the thermal and electrical properties of CFRP structures are affected by the fiber properties and composite structure. The experiments and simulations show that fiber type and fiber volume fraction are of great importance for the electrical and thermal properties. The relation between fiber volume fraction and equivalent resistivity is nonlinear and the experiments indicate that a fiber volume fraction exceeding 60% is necessary to achieve a fairly isotropic resistivity and uniform induction heating pattern. (Less)
Abstract
Carbon fiber reinforced plastics, CFRP, are attractive materials not only because of their strength and stiffness but also because of their electrical conductivity and high thermal conductivity and diffusivity. One application where induction heating of CFRP is particularly interesting is tools for fast thermal cycling, beneficial in many industrial processes, for example in composite manufacturing. The electrical properties make it possible to heat with induction and the high thermal conductivity allows fast heat equalization. In order to control inducting heating of CFRP it is desirable to know the electrical and thermal properties of the composite. This work presents developed experimental methods that are used in an investigation of... (More)
Carbon fiber reinforced plastics, CFRP, are attractive materials not only because of their strength and stiffness but also because of their electrical conductivity and high thermal conductivity and diffusivity. One application where induction heating of CFRP is particularly interesting is tools for fast thermal cycling, beneficial in many industrial processes, for example in composite manufacturing. The electrical properties make it possible to heat with induction and the high thermal conductivity allows fast heat equalization. In order to control inducting heating of CFRP it is desirable to know the electrical and thermal properties of the composite. This work presents developed experimental methods that are used in an investigation of how the thermal and electrical properties of CFRP structures are affected by the fiber properties and composite structure. The experiments and simulations show that fiber type and fiber volume fraction are of great importance for the electrical and thermal properties. The relation between fiber volume fraction and equivalent resistivity is nonlinear and the experiments indicate that a fiber volume fraction exceeding 60% is necessary to achieve a fairly isotropic resistivity and uniform induction heating pattern. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
keywords
Carbon fiber composites, CFRP, Induction heating, uniform heating, isotropy
in
International Journal of Applied Electromagnetics and Mechanics
volume
53
issue
S1
pages
21 - 30
publisher
IOS Press
ISSN
1383-5416
language
English
LU publication?
yes
id
d35c5c82-c80c-4c08-abf8-67f07ea366ed
date added to LUP
2017-12-06 12:55:57
date last changed
2017-12-20 10:52:43
@article{d35c5c82-c80c-4c08-abf8-67f07ea366ed,
  abstract     = {Carbon fiber reinforced plastics, CFRP, are attractive materials not only because of their strength and stiffness but also because of their electrical conductivity and high thermal conductivity and diffusivity. One application where induction heating of CFRP is particularly interesting is tools for fast thermal cycling, beneficial in many industrial processes, for example in composite manufacturing. The electrical properties make it possible to heat with induction and the high thermal conductivity allows fast heat equalization. In order to control inducting heating of CFRP it is desirable to know the electrical and thermal properties of the composite. This work presents developed experimental methods that are used in an investigation of how the thermal and electrical properties of CFRP structures are affected by the fiber properties and composite structure. The experiments and simulations show that fiber type and fiber volume fraction are of great importance for the electrical and thermal properties. The relation between fiber volume fraction and equivalent resistivity is nonlinear and the experiments indicate that a fiber volume fraction exceeding 60% is necessary to achieve a fairly isotropic resistivity and uniform induction heating pattern.},
  author       = {Lundström, Fredrik and Frogner, Kenneth and Wiberg, Oscar and Cedell, Tord and Andersson, Mats},
  issn         = {1383-5416},
  keyword      = {Carbon fiber composites,CFRP,Induction heating,uniform heating,isotropy},
  language     = {eng},
  month        = {02},
  number       = {S1},
  pages        = {21--30},
  publisher    = {IOS Press},
  series       = {International Journal of Applied Electromagnetics and Mechanics},
  title        = {Induction heating of carbon fiber composites: Investigation of electrical and thermal properties},
  volume       = {53},
  year         = {2017},
}