正交各向异性材料三维热传导问题的有限元列式

Finite element formulation of 3-D heat transfer in orthotropic materials

针对通常复合材料热传导性能同其力学性能一样呈各向异性 ,从用热流密度表示的热传导微分方程入手 ,利用Galerkin方法建立了正交各向异性材料三维热传导问题的有限元列式 .

Considering that the heat transfer properties of composite materials have the same anisotropy as their mechanical properties, a finite element formulation has been established for the three-dimensional heat transfer in orthotropic anisotropy materials with heat transfer differential equations expressed in heat fluid density in the Galerkin's way. The numerical results obtained with typical examples show that the heat transfer anisotropy of composite materials has an important effect on the distribution of temperature fields.