Viscoelastic analysis method for rocket motors containing cracks

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Authors
Lindsey, Gerald Herbert
Subjects
Advisors
Date of Issue
1973-03
Date
1973-03
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The basic definitions for viscoelastic stress intensity factors are set forth with associated computations for determining them in laboratory specimens. Laboratory tests have been conducted to characterize propellants fracturewise. and the most suitable test found was the long strip subjected to a constant force loading. The influence of dewetting on the fracture characterization appears to be significant, but the matter has not yet been fully resolved. An approximate method for performing viscoelastic fracture analyses has been presented which incorporates the fore-mentioned fracture characterization. It requires minimum computer usage and should yield good results. (Author)
Type
Technical Report
Description
Series/Report No
Department
Identifiers
NPS Report Number
NPs-57Lr/3531A
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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.
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