FREE-VIBRATIONS OF LAMINATED COMPOSITE NONCIRCULAR THIN CYLINDRICAL-SHELLS

Citation
K. Suzuki et al., FREE-VIBRATIONS OF LAMINATED COMPOSITE NONCIRCULAR THIN CYLINDRICAL-SHELLS, Journal of applied mechanics, 61(4), 1994, pp. 861-871
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanics
Journal title
ISSN journal
0021-8936
Volume
61
Issue
4
Year of publication
1994
Pages
861 - 871
Database
ISI
SICI code
0021-8936(1994)61:4<861:FOLCNT>2.0.ZU;2-T
Abstract
An exact solution procedure is presented for solving free vibration pr oblems for laminated composite noncircular cylindrical shells. Based o n the classical lamination theory, strain energy and kinetic energy fu nctionals are first derived for shells having arbitrary layer stacking sequences. These functionals are useful for a general analysis based upon energy principles. However, in the present work equations of moti on and boundary conditions are obtained from the minimum conditions of the Lagrangian (Hamilton's principle), The equations of motion are so lved exactly by using a power series expansion for symmetrically lamin ated, cross-ply shells having both ends freely supported. Frequencies are presented for a set of elliptical cylindrical shells, and the effe cts of various parameters upon them are discussed.