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Stresses and deformations in cross-ply composite tubes subjected to a uniform temperature changeThis study investigates the effects of a uniform temperature change on the stresses and deformations of composite tubes and determines the accuracy of an approximate solution based on the principle of complementary virtual work. Interest centers on tube response away from the ends and so a planar elasticity approach is used. For the approximate solution a piecewise linear variation of stresses with the radial coordinate is assumed. The results from the approximate solution are compared with the elasticity solution. The stress predictions agree well, particularly peak interlaminar stresses. Surprisingly, the axial deformations also agree well, despite the fact that the deformations predicted by the approximate solution do not satisfy the interface displacement continuity conditions required by the elasticity solution. The study shows that the axial thermal expansion coefficient of tubes with a specific number of axial and circumferential layers depends on the stacking sequence. This is in contrast to classical lamination theory, which predicts that the expansion will be independent of the stacking arrangement. As expected, the sign and magnitude of the peak interlaminar stresses depend on stacking sequence. For tubes with a specific number of axial and circumferential layers, thermally induced interlaminar stresses can be controlled by altering stacking arrangement.
Document ID
19860058418
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hyer, M. W.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Cooper, D. E.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Cohen, D.
(Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Journal of Thermal Stresses
Volume: 9
Issue: 2 19
ISSN: 0149-5739
Subject Category
Composite Materials
Accession Number
86A43156
Funding Number(s)
CONTRACT_GRANT: NAG1-343
Distribution Limits
Public
Copyright
Other

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