FREE VIBRATION ANALYSIS OF LAMINATED STIFFENED CYLINDRICAL PANELS USING FINITE ELEMENT METHOD

Trinh Anh Tuan, Tran Huu Quoc, Tran Minh Tu

Abstract


A study on the free vibration analysis of stiffened laminated composite cylindrical shell is described in this paper. The eight-noded isoparametric degenerated shell element is developed to model both shell panel and stiffeners by using the degenerated solid concept based on Reissner-Mindlin assumptions which taking to account the shear deformation and rotatory effect. Numerical results are presented and comparison is made with the published results from the literature and the good agreement is found. Parametric studies considering different geometrical variables of shell and stiffeners have also been carried out.


Keywords


laminated composite shells; stiffened shells; vibration analysis; finite elements; degenerated shell element

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DOI: https://doi.org/10.15625/0866-708X/54/6/8214 Display counter: Abstract : 36 views. PDF : 75 views.

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Published by Vietnam Academy of Science and Technology