Device and method for applying internal pressure to a hollow cylinder
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Authors
Ponshock, Timothy David
Kwon, Young Wuk
Subjects
Advisors
Date of Issue
2018-07-17
Date
Publisher
The Government of the United States of America, as represented by the Secretary of the Navy, Washington, DC (US)
Language
en_US
Abstract
A device and method for applying an internal pressure and resultant hoop stress to a hollow cylindrical object, such as a test cylinder, utilizing an expandable cylinder and upper and lower conically shaped rams. The device is inserted into a test cylinder, and when a compressive force is applied to the upper and lower conically shaped rams, the rams move vertically into upper and lower conically shaped cavities of the expandable cylinder. The sloped inner surfaces of the conically shaped upper and lower cavities convert the vertical motion into an outward radial motion, applying an internal pressure and resultant hoop stress to the cylindrical object.
Type
Patent
Description
Patent
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
22 p.
Citation
Distribution Statement
Rights
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.