Modeling Pitting and Corrosion Phenomena By Eddy-Current Volume-Integral Equations (Postprint)

Abstract

A wide variety of problem in computational electromagnetics has been successfully solved using a volume-integral approach along with conjugate-gradient methods. In the arena of quantitative nondestructive evaluation (NDE) of nuclear-power and aerospace structures, the problem of modeling pitting and corrosion phenomena is particularly challenging. Based on real corrosion pits in heat-exchanger tubes in nuclear power plants, and manufactured pits in aircraft structures, we develop general models that are suitable for the analysis using VIC-3D , a proprietary volume-integral code. Based on these models, we develop the notion of model-based inversion, and apply it to the NDE of corrosion and pitting phenomena.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2007
Accession Number
ADA476940

Entities

People

  • Elias H. Sabbagh
  • Eric Lindgren
  • Harold A. Sabbagh
  • Jeremy S. Knopp
  • John C. Aldrin
  • R. K. Murphy

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Corrosion
  • Department Of Defense
  • Eddy Currents
  • Equations
  • Heat Exchangers
  • Information Operations
  • Integral Equations
  • Integrals
  • Inversion
  • Materials
  • Military Research
  • Test And Evaluation
  • United States

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • Space