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Thermally induced stresses and deformations in layered composite tubesThe thermally induced stresses and deformations in layered, orthotropic tubes are studied. The motivation for studying tubes is their likely application for use in space structures. Tubes are a strong candidate for this application because of their high structural efficiency, as measured by stiffness per unit weight, and their relative ease of fabrication. Also, tubes have no free edges to deteriorate or delaminate. An anticipated thermal condition for tubes in space is a circumferential temperature gradient. This type of gradient will introduce dimensional changes into the structure and may cause stresses large enough to cause damage to the material. There are potentially large differences in temperatures at different circumferential locations on the tube. Because of this, the effects of temperature dependent material properties on the stresses and deformations may be important. The study is composed of three parts: experiments to determine the functional form of the circumferential gradient and to measure tube deflections; an elasticity solution to compute the stresses and deformations; and an approximate approach to determine the effects of temperature dependent material properties.
Document ID
19860012127
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cooper, D. E.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Cohen, D.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Rousseau, C. Q.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Hyer, M. W.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Tompkins, S. S.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: Virginia Polytechnic Inst. and State Univ. Proceedings of the 2nd Annual Review of the Center for Composite Materials and Structures
Subject Category
Composite Materials
Accession Number
86N21598
Funding Number(s)
CONTRACT_GRANT: NAG1-343
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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