Identification of Materiel Damage in Two Dimensional Domains Using Squid Based NDE System

Abstract

Problems on the identification of two-dimensional spatial domains arising in the detection and characterization of material damage are considered. For electromagnetic nondestructive evaluation systems, observations of the magnetic flux from the front surface are used in a output least-square approach. Parameter estimation techniques based on the method of mappings are discussed and approximation schemes are developed applying a finite-element Galerkin approach. Theoretical convergence results for computational techniques are given and results are applied to numerical experiments to demonstrate the efficacy of the proposed schemes.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA453823

Entities

People

  • Fumihide Kojima
  • H. Thomas Banks

Organizations

  • North Carolina State University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Alternating Current
  • Boundaries
  • Carbon Fiber Reinforced Polymer
  • Carbon Fibers
  • Computational Science
  • Data Acquisition
  • Fiber Reinforced Polymers
  • Flux Density
  • Magnetic Flux
  • Magnetic Flux Density
  • Materials
  • Mathematical Models
  • North Carolina
  • Observation
  • Reinforced Plastics
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Statistical inference.
  • Structural Health Monitoring of Composite Structures.