Numerical modelling of CFRP induction heating using temperature-dependent material properties

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Numerical modelling of CFRP induction heating using temperature-dependent material properties. / Lundström, Fredrik; Frogner, Kenneth; Andersson, Mats.

I: Composites Part B: Engineering, Vol. 220, 108982, 01.09.2021.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Numerical modelling of CFRP induction heating using temperature-dependent material properties

AU - Lundström, Fredrik

AU - Frogner, Kenneth

AU - Andersson, Mats

N1 - Funding Information: The present work was carried out within the Sustainable Production Initiative (SPI), financed by VINNOVA . Publisher Copyright: © 2021 Elsevier Ltd Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Induction heating of CFRP is an energy-efficient and fast method that may be used for example during consolidation of thermoset-based CFRP or welding of thermoplastic-based CFRP. This study investigates how induction heating of CFRP is affected by the temperature dependence of the thermal and electrical properties and presents a simple numerical model for computation of the temperature distribution during induction heating with a circular coil. Temperature-dependent electrical and thermal properties are measured on a macroscopic level and used in the numerical model. Thermographic recordings are made during induction heating to validate the results from the numerical model. The result shows the importance of using temperature-dependent thermal properties in the numerical model, while it might not be necessary to use temperature-dependent electrical conductivity because of the small impact on the computed heat generation and temperature.

AB - Induction heating of CFRP is an energy-efficient and fast method that may be used for example during consolidation of thermoset-based CFRP or welding of thermoplastic-based CFRP. This study investigates how induction heating of CFRP is affected by the temperature dependence of the thermal and electrical properties and presents a simple numerical model for computation of the temperature distribution during induction heating with a circular coil. Temperature-dependent electrical and thermal properties are measured on a macroscopic level and used in the numerical model. Thermographic recordings are made during induction heating to validate the results from the numerical model. The result shows the importance of using temperature-dependent thermal properties in the numerical model, while it might not be necessary to use temperature-dependent electrical conductivity because of the small impact on the computed heat generation and temperature.

KW - A. Carbon fibre

KW - B. Electrical properties

KW - B. Thermal properties

KW - C. Finite element analysis (FEA)

KW - Induction heating

U2 - 10.1016/j.compositesb.2021.108982

DO - 10.1016/j.compositesb.2021.108982

M3 - Article

AN - SCOPUS:85106207808

VL - 220

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

SN - 1359-8368

M1 - 108982

ER -