Analysis of Induction Heating Temperature Field of Plain Weave CFRP Based on Finite Element Meso Model

A resistor network model for analysis of current and temperature distribution in carbon fibre reinforced polymers during induction heating

“…These equations also implies that I z (m,n) can be determined according to equation (8) and thus reduced from the equation system. Therefore, the total number of unknown current components will be according to equation (9). Each element is associated with two current equations ( 5) and ( 6), and all elements except the ones on the outer edge (i = m and j = n) are associated with a voltage equation.…”

“…One important factor in the development of the technology for induction heating of CFRP is proper modelling tools. For modelling of induction heating in CFRP a common approach is to use the finite element method, for example used by Senghor et al, 7 Bui et al, 8 Grouve et al, 3 Fu et al, 9 Riccio et al, 10 Tzeng et al 11 and Lundström et al 12 In such models CFRP are often represented as anisotropic homogeneous domains using macroscopic material properties since it would be unmanageable to simulate the induction heating process on microscopic level. One of the most crucial parameters during induction heating of CFRP is the electrical conductivity and its direction 1 dependency.…”

“…This is a reasonable approach due to the rapid temperature equalization through the thickness of layers, described by Lundström et al, 12 making it unnecessary and costly to simulate gradients on microscopic level. Consequently, the resistor network approach could significantly reduce the number of unknowns in comparison to three dimensional finite element models, like the model presented by Fu et al 9 where the mesh size is significantly smaller than the width of a tow. Especially in the case with woven CFRP a resistor network representation would be very intuitive.…”

Electrothermal Curable Epoxy Interface Adhesive Composite with Low Voltage: An Ideal Thermal Management and EMI Shielding Material

“…Previous curing technologies such as infrared, microwave, and induction heating were popular in adhesive field, which could achieve the goal of low energy consumption and enhance curing performance to varying degrees. Unexpectedly, microwave heating could not cure composites stacked in multiple directions due to the limitations on penetration depth along the thickness direction. ,, In addition, induction heating − could only heat a portion of the material that forms a closed eddy current circuit in a specific area. Compared with traditional oven heating strategies, the electrothermal curable strategies have been attracting growing interest due to their high electric heating conversion efficiency and energy-saving, which can achieve local exothermic curing of the adhesive area instead of the overall area and then solidify quickly .…”

Research on the Heating Process of CFRP Circular Tubes Based on Electromagnetic Induction Heating Method

“…The study found that the temperature dependence of material properties has a significant impact on the heating rate, where the thermal conductivity and specific heat are basically proportional to temperature and have a large temperature dependence, while the electrical conductivity has a small dependence. Fu et al [ 19 ] provided a microscale model of plain weave CFRP plates for electromagnetic induction heating and analyzed the distribution of eddy current and temperature fields at the microscale during the heating process. Bruce et al [ 20 ] input an ascending temperature model that can predict the transient heat distribution inside different carbon fiber composite structures into finite element thermal conduction analysis, which realizes a finite element model and analysis method to predict the internal transient heat distribution of layered plates on different molds.…”