Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
510373 | Computers & Structures | 2011 | 14 Pages |
Abstract
This paper presents buckling and free vibration analysis of composite plate/shell structures of various shapes, modulus ratios, span-to-thickness ratios, boundary conditions and lay-up sequences via a novel smoothed quadrilateral flat element. The element is developed by incorporating a strain smoothing technique into a flat shell approach. As a result, the evaluation of membrane, bending and geometric stiffness matrices are based on integration along the boundary of smoothing elements, which leads to accurate numerical solutions even with badly-shaped elements. Numerical examples and comparison with other existing solutions show that the present element is efficient, accurate and free of locking.
Keywords
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Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
H. Nguyen-Van, N. Mai-Duy, W. Karunasena, T. Tran-Cong,