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Innovative simulation tool for composite material heating using microwave

Abstract : The context of the present work is the development of new processes for the heating and forming of composite materials in order to provide an answer to the industrials needs for less energy and less time-consuming processes. In that sense, microwave heating is perfect match as it relies on volumetric heating. The major drawback is that the behaviour of the electric field while interacting with composite material is poorly known. Therefore, the main objective of this thesis is to provide numerical solutions to go more deeply in the understanding of such process and put forward its capabilities for an industrial development.To fulfil this objective, the work is oriented over three main axes. First, an innovative simulation tool is presented in order to solve the Maxwell’s equations in a thin multi layered domain. Taking into account the 3D behaviour of the electric field is a major issue in order to describe precisely the impact of the different plies of the laminate on the propagation of the electric field.Then, the electromagnetic simulation is coupled with a thermal simulation in order to simulate the full heating process of a composite part. Parameters of the process are investigated to bring forward the most crucialones. Finally, real-time control of the process is tackled using a model order reduction simulation technique. These results are compared to experimental work on two sets of samples.
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Hermine Tertrais. Innovative simulation tool for composite material heating using microwave. Mechanics of the solides [physics.class-ph]. École centrale de Nantes, 2018. English. ⟨NNT : 2018ECDN0061⟩. ⟨tel-02117899⟩

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