Accession Number : ADA312778

Title :   Adaptive and Parallel Computational Techniques in Materials Science.

Descriptive Note : Final rept. 1 Apr 94-31 Mar 96,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY NY

Personal Author(s) : Flaherty, Joseph E.

PDF Url : ADA312778

Report Date : 09 AUG 1996

Pagination or Media Count : 17

Abstract : We developed mathematical models for problems involving the fabrication of ceramic- matrix composites, the coating of ceramic fibers, and the oxidation of ceramic-matrix composites. To solve these models, we developed an adaptive and parallel computational framework for the finite element and finite volume solution of partial differential equations. The parallel adaptive framework handles mesh generation, refinement, and coarsening; dynamic load balancing; distributed database management; interprocessor communications; data migration; time integration; and algebraic solutions. The models and solutions revealed improved processing techniques for a reactive vapor infiltration application and potentially superior strategies for coating fibers. Oxidation studies are investigating the 'self healing' of cracks.

Descriptors :   *COMPUTATIONS, *MATERIALS, *PARALLEL PROCESSING, *MATRIX MATERIALS, *CERAMIC MATERIALS, *COATINGS, *ADAPTIVE SYSTEMS, MATHEMATICAL MODELS, DATA MANAGEMENT, COMPOSITE MATERIALS, FINITE ELEMENT ANALYSIS, CRACKS, PROCESSING EQUIPMENT, INTEGRATION, OXIDATION, PARTIAL DIFFERENTIAL EQUATIONS, COMMUNICATION AND RADIO SYSTEMS, DYNAMIC LOADS, MIGRATION.

Subject Categories : Ceramics, Refractories and Glass
      Coatings, Colorants and Finishes
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE