A Model of Passive Thermal Nondestructive Evaluation of Composite Laminates,

Abstract

A numerical model of passive thermal nondestructive evaluation of composite laminates was developed. This model, based on a transient, three-dimensional, finite difference solution to the heat conduction equations, can be used to characterize in-plane defects in the laminates and to predict the laminate response to the thermal test. The model was experimentally verified using two material systems. A parametric study was then conducted to ascertain which variables were critical to the success of passive thermal NDE, and how flaw resolution might be improved. jg p.4

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA300475

Entities

People

  • Dale W. Wilson
  • John A. Charles

Organizations

  • University of Delaware

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Engineering
  • Equations
  • Geometry
  • Graphitic Materials
  • Heat Transfer
  • Heat Transmission
  • Laminates
  • Materials
  • Surface Temperature
  • Temperature Gradients
  • Test And Evaluation
  • Thermal Conductivity
  • Thermal Images
  • Thermal Properties
  • Thickness
  • Time Intervals

Readers

  • Structural Health Monitoring of Composite Structures.
  • Thermal Physics or Thermal Science.