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Title: Continuous element formulations for composite ring-stiffened cylindrical shells
Authors: Le, Thi Bich Nam
Nguyen, Manh Cuong
Tran, Ich Thinh
Tran, Thanh Dat
Vu, Dinh Trung
Keywords: Continuous element method
Laminated composite cylindrical shell
Ring stiffener shell
Issue Date: 2018
Series/Report no.: Vietnam Journal of Science and Technology;Vol.56(04) .- P.515–529
Abstract: This article studies the free vibration of composite ring-stiffened cylindrical shells by the continuous element method (CEM). The dynamic stiffness matrix (DSM) of the studied structure has been constructed based on the analytical solutions of the governing equations of motion for composite cylindrical shells and annular plates. By applying the assembly procedure of the continuous elements method, natural frequencies and harmonic responses of composite ring-stiffened cylindrical shells are determined. In addition, the proposed model allows to exactly extract ring-stiffener vibration modes. Numerical examples confirm advantages of the proposed model: high precision solution even in medium and high frequencies, saving in calculating time and volume of data storage.
ISSN: 2525-2518
Appears in Collections:Vietnam journal of science and technology

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