Journal
THIN-WALLED STRUCTURES
Volume 113, Issue -, Pages 170-180Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2017.01.011
Keywords
Quadrilateral composite plate; Reissner-Mindlin quadrilateral element; Smoothed shear strain; Nonlinear analysis
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Linear and nonlinear analyses of shear deformable thin and thick arbitrary straight-sided quadrilateral plates are reported here using smoothed finite element technique. The Reissner-Mindlin plates are discretized with quadrilateral background cells. Then membrane and bending stiffness matrices of background quadrilateral cells are evaluated using edge-based smoothed finite element method(ES-FEM). The shear stiffness matrix is calculated based on smoothed shear strain approach and the performance is compared with edge-consistent four-node quadrilateral finite element. The convergence, accuracy and sensitivity to mesh distortion of the present quadrilateral element is examined. Thereafter, the nonlinear bending and vibration analyses of trapezoidal and arbitrary straight-sided quadrilateral composite plates are presented for which only limited analytical results are available in the literature.
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