Ultrasonic Evaluation of SRMU Bondlines

Abstract

Pulse Echo (PE) ultrasonic evaluation of a Solid Rocket Motor Upgrade (SRMU) test sample was performed in our laboratory. The test sample contained simulated delaminations between both the Gr/Ep composite/insulator bondline and the insulator/inert propellant bondline. In this report, the acoustic properties of the SMRU component materials are used to construct a theoretical model for ultrasonic pulse propagation within the sample. The experimental results are then compared with the predictions from this model. This evaluation showed that PE ultrasonic inspection of the SRMU bondlines is feasible. In addition, several means for improving one's capability to detect disbonded regions are suggested.

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Document Details

Document Type
Technical Report
Publication Date
Jan 04, 1991
Accession Number
ADA231697

Entities

People

  • Eric C. Johnson
  • Gary F. Hawkins
  • Juliet N. Schurr

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Properties
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Composite Materials
  • Dielectrics
  • Materials
  • Materials Science
  • Physics Laboratories
  • Propellants
  • Rocket Engines
  • Security
  • Semiconductor Devices
  • Space Systems
  • Test And Evaluation
  • Ultrasonic Inspection

Fields of Study

  • Physics

Readers

  • Rocket Propulsion.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems