An Improved Thermal Lamination Model for Analysis of Heat Transfer in Composite Structures

Abstract

A new thermal lamination model and its associated finite element model are presented for analysis of heat transfer in laminated composite structures. The form of the present model closely resembles that of recent zig-zag sublaminate structural laminate theories. The through-thickness distribution of temperature is assumed to vary linearly within each ply, and continuity of transverse flux at ply interfaces is enforced analytically. Thus, the number of computational degrees-offreedom (DOFs) is made independent of the number of plies in the sublaminate. In its present form, the model contains only two computational DOFs in each sublaminate–the temperature at the top and bottom surface of the sublaminate. This model lends itself well to development of convenient and efficient finite element models, as demonstrated herein. Both linear and nonlinear numerical results are presented to demonstrate the effectiveness of the present approach.

A new heat flux continuity model for thermal analysis of laminated plates

“…In this example, the behavior of a symmetric eight-layer laminate of equal individual layer thickness has been studied by taking the thickness ratio (h/a) ¼ 0.1. This laminate is composed of two materials whose thermal properties 11 are shown in Table 1. The lamination scheme is (1/2/1/2/2/1/2/1) where 1 stands for material 1 and 2 stands for material 2.…”

“…Pantano and Averill 11 have proposed an improved thermal lamination model for heat transfer in composite structures using new thermal lamination model and solved the problem using finite element method. The model 11 closely follows the zig-zag sub-laminate structural theories. The linear variation in through-thickness temperature is assumed within each ply, and continuity of transverse flux at ply interfaces is enforced analytically.…”

Measurements on the Enhancement of the Thermal Conductivity of an Epoxy Resin when Reinforced with Glass Fiber and Carbon Multiwalled Nanotubes

“…The absence of reliable thermophysical data may hinder the full utilization of these composites. Empirical and semiempirical models as well as numerical methods, each with their own assumptions, − have been used to estimate the thermal conductivity of a fiber-reinforced composite, and these ultimately require validation with experimental data that is of paramount importance. Polymer matrices are often reinforced by nanoparticles because they enhance both the physical and the mechanical properties of the composite .…”

Heat Transfer Studies on Glass Epoxy Composite Laminates - Effects of Heating Rate and Fiber Fraction

“…Amazouz and Gauvin [8], through a finite element analysis of the heat dissipation capacity of a UD glass fiber reinforced epoxy (GFRE) containing highly heat conductive carbon fibers, showed that the carbon fibers offered the advantage of a better heat dissipation capacity, and that the conductive fibers must be concentrated in a layer close to the location of the heat source. Pantano and Averill [9] presented a thermal lamination model for laminated composites by assuming the through-thickness distribution of temperature to be varying linearly with each ply and continuity of transverse flux at ply interfaces is enforced analytically.…”