Accession Number : ADA557454
Title : Thermal Damage Detection and Characterization in Porous Materials
Descriptive Note : Technical rept.
Corporate Author : NORTH CAROLINA STATE UNIV AT RALEIGH CENTER FOR RESEARCH IN SCIENTIFIC COMPUTATION
Personal Author(s) : Banks, H T ; Criner, Amanda K
Report Date : 30 Nov 2011
Pagination or Media Count : 25
Abstract : In this effort, we consider damage detection algorithms using thermal probes. The techniques proposed employ models derived from homogenization theory as the model solution in parameter estimation procedures for simulated data for heat flow in a porous medium. We consider data simulated from a model on a perforated domain with isotropic flow and data simulated from a model on a homogeneous domain with anisotropic flow. We report on ordinary least squares methods combined with the method of mappings to detect the presence of damage and to characterize the geometry of the damage.
Descriptors : *COMPOSITE MATERIALS , *DAMAGE ASSESSMENT , *HEAT TRANSMISSION , *INVERSE PROBLEMS , *MATHEMATICAL MODELS , *NONDESTRUCTIVE TESTING , *POROUS MATERIALS , *THERMAL DIFFUSION , ANISOTROPY , APPROXIMATION(MATHEMATICS) , ERRORS , GRAPHS , ISOTROPISM , LEAST SQUARES METHOD , MAPPING , RANDOM VARIABLES , TABLES(DATA)
Subject Categories : Laminates and Composite Materials
Statistics and Probability
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE