Viscoelastic fracture characterization of a solid propellant.

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Author
Hertzler, Charles Miller.
Date
1972-06Advisor
Lindsey, G.H.
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Show full item recordAbstract
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.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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