Accession Number : ADA332005

Title :   Computational Methods for Electromagnetic Scattering and Structural Phase Transitions.

Descriptive Note : Fnal 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 : ADA332005

Report Date : 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 (unstructure 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, ALGORITHMS, OPTIMIZATION, COMPUTATIONS, RATES, ESTIMATES, CONVERGENCE, TRANSITIONS, NUMERICAL METHODS AND PROCEDURES, MARTENSITE.

Subject Categories : Physical Chemistry
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE