An equivalent temperature model of 3-D steady heat conduction analysis for a fiber metal laminated plate coated with a thermal barrier

Abstract

In this paper, an equivalent temperature model of 3-D steady heat conduction analysis for a fiber metal laminated plate coated with a thermal barrier is presented. The separate variable method and equivalent temperature method are applied comprehensively to solve the temperature field at the interface between the thermal barrier and top aluminum 2024-T3 layer for the fiber metal laminated structure firstly, and values of other layers? temperature and thermal contact resistance are obtained based on balance principle of heat flux between respective adjacent top and bottom layers subsequently. The aim of this research is to understand the influences of kinds of fiber species, numbers of fiber metal laminated, thickness ratio between total coated figer metal laminated structure and thermal barrier as well as temperature distributed function on the values of thermal contact resistance between respective adjacent layers and temperature distribution from top to bottom surfaces for the coated figer metal laminated structure. Especially, the ratio of thermal contact resistance between maximum and minimum values are about five times no matter considering one or two kinds of fiber species. Besides the present results (mainly geometrical and physical parameters? effect) could guide engineers designing the coated figer metal laminated structures to adapt to high temperature environment especially aerospace temperature environment.