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Nonlinear transient analysis of moderately thick rectangular composite plates

机译:中厚矩形复合板的非线性瞬态分析

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摘要

This paper presents an analytical-numerical methodology for the geometrically nonlinear analysis of laminated composite plates under dynamic loading. The methodology employs Galerkin technique, in which suitable polynomials are chosen as trial functions. In the solution process, Newmark's scheme for time integration, and modified Newton-Raphson method for the solution of resulting nonlinear equations are used. In the formulation, first order shear deformation theory based on Mindlin's hypothesis and von Karman type geometric nonlinearity are considered. The results are compared to that of finite strips, and Chebyshev series published elsewhere. The method is found to determine closely both the displacements and the stresses. A finite element analysis has also been carried out for the validation of the results. The present method can be efficiently and easily applied for the nonlinear transient analysis of laminated composite plates with various boundary conditions.
机译:本文提出了一种在动态载荷作用下层合复合板几何非线性分析的解析数值方法。该方法采用Galerkin技术,其中选择了合适的多项式作为试验函数。在求解过程中,使用了纽马克(Newmark)的时间积分方案和改进的牛顿-拉夫森(Newton-Raphson)方法来求解由此产生的非线性方程。在公式中,考虑了基于Mindlin假设和von Karman型几何非线性的一阶剪切变形理论。将结果与有限条带的结果进行比较,并在别处发表Chebyshev系列。发现该方法可以同时确定位移和应力。为了验证结果,还进行了有限元分析。本方法可以有效,简便地应用于具有各种边界条件的层合复合板的非线性瞬态分析。

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  • 来源
    《Aeronautical journal》 |2010年第1157期|P.437-444|共8页
  • 作者

    H. Tanrioever; E. Senocak;

  • 作者单位

    Istanbul Technical University Department of Mechanical Engineering Istanbul Turkey;

    rnIstanbul Technical University Department of Mechanical Engineering Istanbul Turkey;

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  • 正文语种 eng
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