Accession Number:

AD0747531

Title:

Viscoelastic Fracture Characterization of a Solid Propellant

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1972-06-01

Pagination or Media Count:

40.0

Abstract:

Both analytical and experimental studies were conducted on a propagating crack in a viscoelastic material. By applying an extension of the correspondence principle the stress and displacement at the crack tip were found as functions of the crack tip stress intensity factor. An energy balance was made for the specimen which allowed this factor to be related to geometric and load parameters. Fracture characterization was then performed by experimentally relating the crack tip stress intensity factor to the crack velocity. The theory was applied to solid propellant fracture tests however, the dewetting behavior of the propellant was not accounted for by the theory.

Subject Categories:

  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE