Analysis of the possibility of determining the internal structure of composite material by estimating its thermal diffusivity making use of the inverse head conduction method

• Autorzy: Kucypera S.
• Języki publikacji: EN

Abstrakty

EN

The aim of the paper is analysis of the possibility of determining the internal structure of the fibrous composite material by estimating its thermal diffusivity. A thermal diffusivity of the composite material was determined by applied inverse heat conduction method and measurement data. The idea of the proposed method depends on measuring the time-dependent temperature distribution at selected points of the sample and identification of the thermal diffusivity by solving a transient inverse heat conduction problem. The investigated system which was used for the identification of thermal parameters consists of two cylindrical samples, in which transient temperature field is forced by the electric heater located between them. The temperature response of the system is measured in the chosen point of sample. One dimensional discrete mathematical model of the transient heat conduction within the investigated sample has been formulated basing on the control volume method. The optimal dynamic filtration method as solution of inverse problem has been applied to identify unknown diffusivity of multi-layered fibrous composite material. Next using this thermal diffusivity of the composite material its internal structure was determined. The chosen results have been presented in the paper.

Słowa kluczowe

PL

struktura wewnętrzna; kompozyty; materiały włókniste; dyfuzja termiczna

• Wydawca: Wrocław University of Technology, Department of Periodics Publications
• Czasopismo: Journal of Energy Science
• Rocznik: 2010
• Tom: Vol. 1, nr 1
• Strony: 81--91
• Opis fizyczny: Bibliogr. 8 poz., tab., rys.

Twórcy

autor

Kucypera S.

• Silesian University of Technology, Institute of Thermal Technology, Konarskiego 22, 44-100 Gliwice

Bibliografia

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