Thermographic Modeling of Water Entrapment.

Abstract

A common problem found in advance structural materials is water entrapment. This problem is a major cause of material degradation. In metals it can lead to corrosion and in composites it adds unnecessary weight to the structure and can lead to material degradation especially after freezing and thawing. Thermography has been investigated as a means of detecting water entrapment in metallic structures. A simple model has been derived that accurately describes the thermal response of these structures to short heat pulses. In this paper results on Aluminum panels with various amounts of water entrapment will be presented. Sensitivity relations will be derived and validated.

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Document Details

Document Type
Technical Report
Publication Date
Feb 03, 1999
Accession Number
ADA368637

Entities

People

  • Fred Dersha
  • Ignacio Perez
  • Paul Kulowitch
  • William T Davis

Organizations

  • Naval Air Warfare Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aluminum
  • Composite Materials
  • Conductivity
  • Corrosion
  • Degradation
  • Diameters
  • Differential Equations
  • Energy
  • Equations
  • Heat Energy
  • Heat Transfer
  • Heat Transmission
  • Material Degradation Processes
  • Materials
  • Surface Temperature
  • Thermal Conductivity
  • Thermography

Readers

  • Systems Analysis and Design
  • Thermal Physics or Thermal Science.