Accession Number : ADA334839

Title :   Computational Methods for Electromagnetic Scattering and Structural Phase Transitions

Descriptive Note : Final technical rept. 1 Jun 94-31 Jul 97

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF MATHEMATICS

Personal Author(s) : Nicolaides, Roy A.

PDF Url : ADA334839

Report Date : 31 AUG 1997

Pagination or Media Count : 5

Abstract : Computational algorithms for electromagnetic scattering and structured phase transitions are investigated. For scattering, three contributions are presented: (1) Analysis of spurious offset fields, (2) the use of divergence boundary conditions, (3) analysis of covolume (unstructured FDTD) algorithms with estimates of convergence rates. For structural phase transitions adaptive mesh techniques are combined with finite dimensional optimization algorithms to compute new global minimizers for martensitic phase transformations.

Descriptors :   *PHASE TRANSFORMATIONS, *ELECTROMAGNETIC SCATTERING, *MAXWELLS EQUATIONS, ALGORITHMS, MICROSTRUCTURE, OPTIMIZATION, STRUCTURAL PROPERTIES, CONVERGENCE, SPURIOUS EFFECTS, MARTENSITE.

Subject Categories : Electricity and Magnetism
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE