Accession Number:

ADA231697

Title:

Ultrasonic Evaluation of SRMU Bondlines

Descriptive Note:

Technical rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Report Date:

1991-01-04

Pagination or Media Count:

22.0

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 GrEp compositeinsulator bondline and the insulatorinert 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 ones capability to detect disbonded regions are suggested.

Subject Categories:

  • Liquid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE