Accession Number : ADA322845

Title :   Microstructure and Macroscopic Behavior of Random Heterogeneous Materials.

Descriptive Note : Final rept. 1 Sep 92-30 Jun 96,

Corporate Author : PRINCETON UNIV NJ DEPT OF CIVIL ENGINEERING AND OPERATIONS RESEARCH

Personal Author(s) : Torquato, Salvatore

PDF Url : ADA322845

Report Date : 30 JUN 1996

Pagination or Media Count : 13

Abstract : This project attempted to systematically and quantitatively characterize the microstructure of heterogeneous materials and to use such information to predict rigorously the macroscopic behavior (e.g., effective moduli). By employing homogenization theory and the methods of statistical mechanics, we were able to mathematically describe the microstructure and, as a result, accurately determine the macroscopic response under a wide range of conditions. A goal was to treat seemingly disparate problems using a unified methodology. The generality of our approach enabled us to treat a wide class of two- and three-phase isotropic and anisotropic heterogeneous materials. This work will aid in leading to a highly cost-effective means of optimally designing heterogeneous materials for a particular application.

Descriptors :   *MICROSTRUCTURE, *STATISTICAL MECHANICS, COMPUTERIZED SIMULATION, PHASE TRANSFORMATIONS, CRACKING(FRACTURING), FIBER REINFORCED COMPOSITES, MODULUS OF ELASTICITY, STRUCTURAL RESPONSE, THERMAL CONDUCTIVITY, HETEROGENEITY.

Subject Categories : Mechanics
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE