Accession Number : ADA193757

Title :   Boundary Shape Identification Problems in Two-Dimensional Domains Related to Thermal Testing of Materials,

Corporate Author : BROWN UNIV PROVIDENCE RI LEFSCHETZ CENTER FOR DYNAMICAL SYSTEMS

Personal Author(s) : Banks, H. T. ; Kojima, Fumio

Report Date : 15 APR 1988

Pagination or Media Count : 35

Abstract : This paper is concerned with the identification of the geometrical structure of the system boundary for a two-dimensional diffusion system. The domain identification problem treated here is converted into an optimization problem based on a fit-to-data criterion and theoretical convergence results for approximate identification techniques are discussed. Results of numerical experiments to demonstrate the efficacy of the theoretical ideas are reported.

Descriptors :   *THERMAL DIFFUSION, *SYSTEMS ANALYSIS, *NONDESTRUCTIVE TESTING, BOUNDARIES, BOUNDARY VALUE PROBLEMS, CONVERGENCE, GEOMETRY, IDENTIFICATION, MATERIALS, NUMERICAL METHODS AND PROCEDURES, OPTIMIZATION, SHAPE, TEST AND EVALUATION, TWO DIMENSIONAL, APPLIED MATHEMATICS, HILBERT SPACE, FINITE ELEMENT ANALYSIS, AIR FORCE RESEARCH.

Subject Categories : Statistics and Probability
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE