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RESEARCH PAPERS

Effective Thermal Diffusivity for a Multimaterial Composite Laminate

[+] Author and Article Information
W. P. Schimmel

Heat Transfer and Fluid Mechanics Division, Sandia Laboratories, Albuquerque, N. Mex.

J. V. Beck

Michigan State University, East Lansing, Mich.

A. B. Donaldson

Initiating and Pyrotechnic Components Division, Sandia Laboratories, Albuquerque, N. Mex.

J. Heat Transfer 99(3), 466-470 (Aug 01, 1977) (5 pages) doi:10.1115/1.3450719 History: Received May 17, 1977; Online August 11, 2010

Abstract

This paper discusses the development of an “effective thermal diffusivity” which can be used to estimate the temperature response at the insulated rear surface of a multilayer composite to a step in temperature at the front surface of the composite. An example is considered using the effective value along with the mathematics of a single layer problem, and results thereof are compared with both those of an exact solution, and those which use an effective diffusivity computed from a “lumped” parameter model.

Copyright © 1977 by ASME
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