Nonlinear vibration of symmetrically laminated composite skew plates by finite element method

被引：77

作者：

Singha, M. K. ^{[1
]}

Daripa, Rupesh ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Appl Mech, New Delhi 110016, India

来源：

INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS | 2007年 / 42卷 / 09期

关键词：

composite skew plate; nonlinear vibration; finite element; frequency ratio; amplitude;

D O I：

10.1016/j.ijnonlinmec.2007.08.001

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Here, the large amplitude free flexural vibration behavior of symmetrically laminated composite skew plates is investigated using the finite element method. The formulation includes the effects of shear deformation, in-plane and rotary inertia. The geometric non-linearity based on von Karman's assumptions is introduced. The nonlinear matrix amplitude equation obtained by employing Galerkin's method is solved by direct iteration technique. Time history for the nonlinear free vibration of composite skew plate is also obtained using Newmark's time integration technique to examine the accuracy of matrix amplitude equation. The variation of nonlinear frequency ratios with amplitudes is brought out considering different parameters such as skew angle, fiber orientation and boundary condition. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1144 / 1152

页数：9

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