Characterisation of Orthotropic Electrical Conductivity of Unidirectional C/PAEK Thermoplastic Composites

Yannick Buser*, Gerben Bieleman, Wouter Grouve, Sebastiaan Wijskamp, Remko Akkerman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

4 Citations (Scopus)
113 Downloads (Pure)


Induction welding is a promising fusion bonding technology for carbon fibre reinforced thermoplastic composites. In this process, an alternating electromagnetic field induces eddy currents in a composite susceptor. The amount of resultant heat generated is governed by the electrical conductivity of the carbon fibre network, making accurate determination of this orthotropic property important for physics-based process simulations. This work focusses on characterisation of the conductivity in unidirectionally reinforced PAEK using the six-probe method. Special attention has been given to the distribution of the current density in the specimens during each characterisation experiment. Acquired resistance data was subsequently interpreted either analytically or numerically, depending on the current distribution detected. The longitudinal component of the conductivity tensor was found in agreement with the rule of mixtures and the transverse and through-thickness conductivities matched earlier characterisation attempts where a conventional two-probe analysis was employed.
Original languageEnglish
Title of host publicationProceedings of the 20th European Conference on Composite Materials - Composites Meet Sustainability
EditorsAnastasios P. Vassilopoulos, Véronique Michaud
PublisherEcole Polytechnique Fédérale de Lausanne
Number of pages9
Volume3 – Characterization
ISBN (Print)978-2-9701614-0-0
Publication statusPublished - 2022
Event20th European Conference on Composite Materials, ECCM 2022: Composites meet Sustainability - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022
Conference number: 20


Conference20th European Conference on Composite Materials, ECCM 2022
Abbreviated titleECCM


  • Characterisation
  • Electrical conductivity
  • Six-probe method
  • Induction welding


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