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TECHNICAL PAPERS

A Multicontinuum Approach to Structural Analysis of Linear Viscoelastic Composite Materials

[+] Author and Article Information
M. R. Garnich

Engineering Mechanics Group, Battelle—Pacific Northwest, National Laboratory, Richland, WA 99352

A. C. Hansen

Department of Mechanical Engineering, University of Wyoming, Laramie, WY 82071

J. Appl. Mech 64(4), 795-803 (Dec 01, 1997) (9 pages) doi:10.1115/1.2788984 History: Received October 07, 1996; Revised February 10, 1997; Online October 25, 2007

Abstract

A “multicontinuum” approach to structural analyses of composites is described. A continuum field is defined to represent each constituent material along with the traditional continuum field associated with the composite. Finite element micromechanics is used to establish relationships between composite and constituent field variables. These relationships uncouple the micromechanics from structural solutions and render an efficient means of extracting constituent information during the course of a finite element structural analysis. Equations are developed for the case of a linear elastic reinforcing material embedded in a linear viscoelastic matrix and verified by comparison with results of finite element micromechanics.

Copyright © 1997 by The American Society of Mechanical Engineers
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