Natural frequencies and vibration modes of laminated composite plates reinforced with arbitrary curvilinear fiber shape paths

Honda, Shinya; Narita, Yoshihiro

Journal of Sound and Vibration, 2012, 331(1), 180-191

Permalink : https://hdl.handle.net/2115/47954

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アクセス権
open access
URI
https://hdl.handle.net/2115/47954
タイトル
Natural frequencies and vibration modes of laminated composite plates reinforced with arbitrary curvilinear fiber shape paths
著者
e-Rad_Researcher
90548190
著者名
Honda, Shinya
著者名
Narita, Yoshihiro
言語
英語
キーワード
laminated composite
curvilinear fibers
Spline function
natural frequency
vibration mode
Ritz method
発行日
2012-01-02
出版者
Elsevier
収録物名
Journal of Sound and Vibration
巻(号)
331(1)
ページ
180-191
抄録
The development of tow-placement technology has made it possible to control fiber tows individually and place fibers in curvilinear distinct paths in each layer of a laminated plate. This paper presents an analytical method for determining natural frequencies and vibration modes of laminated plates having such curvilinear reinforcing fibers. Spline functions are employed to represent arbitrarily shaped fibers, and Ritz solutions are used to derive frequency equations using series type shape functions. The strain energy is evaluated by numerical integration involving the fiber orientation angle, and is calculated using the derivative of the spline function in minute intervals. The results show that the natural frequencies obtained by the present method agree well with results from finite element analyses. The vibration mode shape contour plots of the plates are seen to reflect clear influences of the fiber shapes.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0022-460X
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.jsv.2011.08.019