Location

La Jolla, CA

Start Date

1-1-1993 12:00 PM

Description

Solid rocket motor segments (SRMs) typically consist of a rigid cylindrical shell, an elastomeric insulation liner, and a core of solid propellant. A rubber boot-liner is often included to relieve stresses between the propellant and insulation liner, produced near the ends of the SRM during the cure of the solid propellant. In the manufacture of the SRM, good bond integrity is required between the boot liner and propellant to prevent detrimental effects on motor performance, thus, a reliable NDE technique is required to detect possible unbond regions. One SRM manufacturer’s approach was a radiographic method consisting of analyzing overlapping tangential x-rays of the bond line. The SRMs had to be oriented horizontally in a special fixture.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

12A

Chapter

Chapter 4: Sensors and New Techniques

Section

New Techniques and Simulations

Pages

1123-1128

DOI

10.1007/978-1-4615-2848-7_144

Language

en

File Format

application/pdf

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Jan 1st, 12:00 PM

Custom PVDF transducers for pulse-echo testing of solid rocket motors for detection of propellant-to-boot-liner unbonds

La Jolla, CA

Solid rocket motor segments (SRMs) typically consist of a rigid cylindrical shell, an elastomeric insulation liner, and a core of solid propellant. A rubber boot-liner is often included to relieve stresses between the propellant and insulation liner, produced near the ends of the SRM during the cure of the solid propellant. In the manufacture of the SRM, good bond integrity is required between the boot liner and propellant to prevent detrimental effects on motor performance, thus, a reliable NDE technique is required to detect possible unbond regions. One SRM manufacturer’s approach was a radiographic method consisting of analyzing overlapping tangential x-rays of the bond line. The SRMs had to be oriented horizontally in a special fixture.