Analysis of Micro-Damage Evolution in Induction-Cured Thermoset Composites
21st European Conference on Composite Materials (ECCM21): Proceedings. Vol.3: Material and Structural Behavior - Simulation and Testing 2024
Andrejs Pupurs, Viesturs Lācis, Alens Šņepsts, Anish Niranjan Kulkarni, Mārtiņš Irbe

In the present study a novel induction heating system for curing of carbon/epoxy composites has been developed and tested. Direct induction heating approach with carbon fibers acting as susceptors for heat generation was used. The novelty of the approach lies in the application of electromagnetic induction which is performed using a moving coil able to perform translation movement in x, y, z directions with respect to the plane of the manufactured plate. Intention of such design is to increase uniformity of induced temperature, which is known to be highly non-uniform as a result of material anisotropy which is in turn strongly related to laminate lay-up. Carbon/epoxy cross-ply laminates made from unidirectional prepreg layers were manufactured using induction heating and with a pre-defined path of coil movement set up using Linux CNC software. Temperature distribution was monitored using a high resolution thermal imaging camera A6752sc from FLIR. Specimens from the induction cured laminates were cut and tested in uniaxial tensile loading to measure their elastic and micro-cracking properties. In addition DSC tests were performed to estimate the degree of cure of the specimens. The results were also compared with reference specimens, which were manufactured using conventional oven curing at a constant temperature.


Atslēgas vārdi
induction heating, carbon fiber composites, epoxy, elastic properties, micro-damage
DOI
10.60691/yj56-np80
Hipersaite
https://sdrive.cnrs.fr/s/Hsy686dM2S6fYGw?dir=undefined&openfile=4079071

Pupurs, A., Lācis, V., Šņepsts, A., Kulkarni, A., Irbe, M. Analysis of Micro-Damage Evolution in Induction-Cured Thermoset Composites. No: 21st European Conference on Composite Materials (ECCM21): Proceedings. Vol.3: Material and Structural Behavior - Simulation and Testing, Francija, Nantes, 2.-5. jūlijs, 2024. Nantes: The European Society for Composite Materials (ESCM) and the Ecole Centrale de Nantes, 2024, 1529.-1534.lpp. ISBN 978-2-912985-01-9. Pieejams: doi:10.60691/yj56-np80

Publikācijas valoda
English (en)
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