Thermographic Detection of Buried Debonds,

Abstract

This study was done to improve the reliability of solid rocket motors by testing infrared video imaging for detecting adhesive bonding flaws. The flaws, buried beneath 0.3 in. of steel and 0.2 in. of rubber in these motors, have been difficult to detect by conventional pulse-echo ultrasonic techniques. Ultrasonic inspection has been ineffective because of the large acoustical impedance mismatched at the steel-rubber interface. To detect buried flaws in spite of the impedance mismatch, infrared video imaging was investigated.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1988
Accession Number
ADA192115

Entities

People

  • Gary F. Hawkins
  • John R. Hribar
  • Mary T. Quinn
  • Raymond L. Ruiz

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adhesive Bonding
  • Adhesives
  • Bonding
  • Classification
  • Computers
  • Conductivity
  • Detection
  • Detectors
  • Finite Element Analysis
  • Hot Spots
  • Insulation
  • Materials
  • Materials Science
  • Physical Properties
  • Security
  • Sensitivity
  • Surface Temperature

Readers

  • Sensor Fusion and Tracking Systems.
  • Structural Health Monitoring of Composite Structures.