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dc.contributor.authorDyess, Mark Vernon
dc.date2008
dc.date.accessioned2019-09-17T13:46:38Z
dc.date.available2019-09-17T13:46:38Z
dc.date.issued2008-03-27
dc.identifier.urihttps://hdl.handle.net/11668/15036
dc.description.abstractThe objective of this research was to develop a test methodology for the evaluation of materials for possible use in cryogenic composite overwrapped pressure vessels (COPVs). This paper investigates various micromechanical and macromechanical techniques to test the interaction between fibers and resins. Uniaxial tension testing was performed at ambient and cryogenic temperatures on neat resin samples, straight-sided composite specimens, and NOL ring specimens. COPVs were constructed and burst tested to provide a performance comparison. Results show resins suitable for use at cryogenic conditions display a LN2 temperature elongation to failure greater than 2% and an ambient temperature elastic modulus less than 35 MPa. NOL rings were determined to be the preferred composite test method rather than straight-sided specimens. Mechanical performance of the NOL rings compares well with actual COPV performance.
dc.publisherMississippi State University
dc.subject.lcshLow temperature engineering--Equipment and supplies--Testing.
dc.subject.lcshPressure vessels--Materials.
dc.subject.lcshEpoxy resins--Effect of low temperatures on.
dc.subject.lcshEpoxy resins--Mechanical properties.
dc.subject.lcshPolymeric composites--Effect of low temperatures on.
dc.subject.lcshPolymeric composites--Mechanical properties.
dc.subject.otherevaluation
dc.subject.otherstraight-sided
dc.subject.otherNOL ring
dc.subject.othertanks
dc.subject.otherpressure vessels
dc.subject.othercomposite
dc.subject.otherCOPV
dc.subject.othercryogenic
dc.titleOptimization of the material selection process for cryogenic composite overwrapped pressure vessels
dc.typeThesis
dc.publisher.departmentDepartment of Mechanical Engineering.
dc.date.authorbirth1983
dc.subject.degreeMaster of Science
dc.contributor.committeeVizzini, J. Anthony
dc.contributor.committeeSchneider, Judy
dc.contributor.committeeSullivan, W. Rani


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