A method of measuring the effective thermal conductivity of thermoplastic foams
| Autor: | André Chateau Akué Asséko, Benoît Cosson, Clément Duborper, Patricia Krawczak, Salim Chaki, Marie-France Lacrampe |
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| Přispěvatelé: | École des Mines de Douai (Mines Douai EMD), Institut Mines-Télécom [Paris] (IMT), Département Technologie des Polymères et Composites & Ingénierie Mécanique (TPCIM), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Ministère de l'Economie, des Finances et de l'Industrie, Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Structural material
Materials science 02 engineering and technology Heat transfer coefficient [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 021001 nanoscience & nanotechnology 01 natural sciences Homogenization (chemistry) 010305 fluids & plasmas [SPI.MAT]Engineering Sciences [physics]/Materials Transverse plane [SPI]Engineering Sciences [physics] Thermal conductivity 0103 physical sciences Heat transfer Thermography [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph] Composite material 0210 nano-technology Porosity |
| Zdroj: | Proceedings of the 20th International ESAFORM Conference on Material Forming (ESAFORM 2017), ISBN: 9780735415805 20th International ESAFORM Conference on Material Forming (ESAFORM 2017) 20th International ESAFORM Conference on Material Forming (ESAFORM 2017), Apr 2017, Dublin, Ireland. pp.060001, ⟨10.1063/1.5008064⟩ |
| DOI: | 10.1063/1.5008064⟩ |
| Popis: | International audience; An inverse method for determining the in-plane effective thermal conductivity of porous thermoplastics was implemented by coupling infrared thermography experiments and numerical solution of heat transfer in straight fins having temperature-dependent convective heat transfer coefficient. The obtained effective thermal conductivity values were compared with previous results obtained using a numerical solution based on periodic homogenization techniques (NSHT) in which the microstructure heterogeneity of extruded polymeric polyethylene (PE) foam in which pores are filled with air with different levels of open and closed porosity was taken into account and Transient Plane Source Technique (TPS) in order to verify the accuracy of the proposed method. The new method proposed in the present study is in good agreement with both NSHT and TPS. It is also applicable to structural materials such as composites, e.g. unidirectional fiber-reinforced plastics, where heat transfer is very different according to the fiber direction (parallel or transverse to the fibers). |
| Databáze: | OpenAIRE |
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