Location

La Jolla, CA

Start Date

1-1-1989 12:00 AM

Description

The Solid Rocket Motors (SRM’s) for the Space Shuttle are fabricated by laying up and molding materials, such as insulation, which are joined using adhesives, the adhesives being set along with the materials in a final curing process for an entire motor segment at a time. The resulting structure (Fig. 1) has two important properties from the point of view of inspection: integrity of the adhesive joints (bondlines) is of great importance, and the structure cannot be disassembled for inspection prior to use. Of particular interest are disbonds producing small voids (delaminations) at the bondlines. Specific delaminations can be located in service hardware only by using NDE methods. This paper reports on the application of thermal methods for performing such inspections.

Volume

8B

Chapter

Chapter 9: Characterization of Materials

Section

Solid-State Bonds and Joints

Pages

2027-2034

DOI

10.1007/978-1-4613-0817-1_257

Language

en

File Format

application/pdf

Share

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Jan 1st, 12:00 AM

Numerically Enhanced Thermal Inspection of Shuttle Solid Rocket Motor Inhibitor/Liner/Fuel Bondline

La Jolla, CA

The Solid Rocket Motors (SRM’s) for the Space Shuttle are fabricated by laying up and molding materials, such as insulation, which are joined using adhesives, the adhesives being set along with the materials in a final curing process for an entire motor segment at a time. The resulting structure (Fig. 1) has two important properties from the point of view of inspection: integrity of the adhesive joints (bondlines) is of great importance, and the structure cannot be disassembled for inspection prior to use. Of particular interest are disbonds producing small voids (delaminations) at the bondlines. Specific delaminations can be located in service hardware only by using NDE methods. This paper reports on the application of thermal methods for performing such inspections.