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Analysis of laminated, composite, circular cylindrical shells with general boundary conditionsThis report develops: (1) a refined approximate theory for the static and dynamic analyses of finite, laminated, composite, circular cylindrical shells with general boundary conditions; (2) an exact three-dimensional analysis of simply supported, laminated, composite, circular cylindrical shells, and (3) a thin-shell theory for laminated, composite, circular cylindrical shells. In the refined approximate theory the displacements are assumed piecewise linear across the thickness and the effects of transverse shear deformations and transverse normal stress are included. A variational approach is followed to obtain the governing differential equations and boundary conditions. A general solution of the governing differential equations is also presented. The results obtained by using the refined approximate theory and the thin-shell theory are compared with the exact results for the case of free vibrations of simply supported, laminated, composite, circular cylindrical shells. The refined approximate theory is very accurate, even for thick shells with short nodal distances, whereas thin-shell theory is reasonably accurate only for thin shells at moderate nodal distances and wave number less than 2.
Document ID
19740013439
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Report (TR)
Authors
Srinivas, S. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1974
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TR-R-412
L-8828
Accession Number
74N21552
Funding Number(s)
PROJECT: RTOP 501-22-02-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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