Magic angles for fiber reinforcement in rubber-elastic tubes subject to pressure and swelling

The synthetic fibers in a fire hose are specially oriented so as to minimize the jerk when the hose is suddenly pressurized – at other fiber orientations the hose would either extend abruptly or shorten abruptly. This is one example of a magic angle that separates different response directions in a...

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Bibliographic Details
Published inInternational journal of non-linear mechanics Vol. 68; pp. 87 - 95
Main Authors Demirkoparan, Hasan, Pence, Thomas J.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.2015
Subjects
Anisotropy
Channels
Deformation
Fiber orientation
Fiber reinforcement
Finite strain
Fires
Hoses
Pressurization
Pressurizing
Rubber elasticity
Swelling
Tubes
Swelling
Finite strain
Rubber elasticity
Fiber reinforcement
Anisotropy
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Summary:The synthetic fibers in a fire hose are specially oriented so as to minimize the jerk when the hose is suddenly pressurized – at other fiber orientations the hose would either extend abruptly or shorten abruptly. This is one example of a magic angle that separates different response directions in a deformation mode as some driving mechanism is varied. Here we investigate magic angles for winding fibers around a tube with an otherwise rubbery matrix by providing a hyperelastic analysis. While the driving mechanism of pressurization is well known in this regard, we also consider the driving mechanism of matrix swelling. Magic angles of fiber orientation are considered for axial deformation and for channel constriction.
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ISSN:0020-7462
1878-5638
DOI:10.1016/j.ijnonlinmec.2014.05.008