A Comparison of Dipole and Finite Element Models for Predicting Leakage Fields Around Rectangular Slots in Ferromagnetic Materials.

Abstract

This technical report describes computer code generated for the study of dipole and finite element models of magnetic field/defect interactions associated with leagage field methods of nondestructive testing. It is the principal investigator's contention that finite element analysis techniques could be used to develop defect characterization schemes for all electromagnetic methods of nondestructive testing, as well as providing valuable insight into the study of defect signal phenomena. Experimental results are given, showing Hall probe generated leakage field profiles around rectangular slots in a steel bar, and compared with both dipole and finite element model predictions.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA053495

Entities

People

  • J. M. Bridges
  • R. Palanisamy
  • W. Lord
  • W. Yen

Organizations

  • Colorado State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computer Programs
  • Crystal Structure
  • Depth
  • Eddy Currents
  • Electrical Engineering
  • Electromagnetic Fields
  • Equations
  • Ferromagnetic Materials
  • Finite Element Analysis
  • Flux Density
  • Magnetic Fields
  • Magnetization
  • Materials
  • Mathematical Models
  • Nondestructive Testing
  • Numerical Analysis

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Electrical Engineering
  • Fluid Mechanics and Fluid Dynamics.