Two-dimensional modeling of heat transfer through sandwich plates with inhomogeneous boundary conditions on the faces

摘要

This paper presents a thermal model describing heat transfer in multispan sandwich rectangular plates. The model is time-dependent and two-dimensional. The different heat transfer phenomena occurring in light cores (honeycomb) form subject of a preliminary literature review which leads to a reduced modeling. The other layers can be orthotropic for conduction. Particular attention is paid to the boundary conditions on the faces of the plate: rzdiative and non-uniform convective exchange are taken into account. The global solution for stationary cases is developed on trigonometric and exponential functions base. The properties of the Laplace transform are used to solve time-dependent cases.