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Nonlinear dynamic response of imperfect eccentrically stiffened FGM double curved shallow shells on elastic foundation

机译：弹性地基上不完善的偏心加筋FGM双曲浅壳的非线性动力响应

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This paper presents an analytical investigation on the nonlinear dynamic response of eccentrically stiffened functionally graded double curved shallow shells resting on elastic foundations and being subjected to axial compressive load and transverse load. The formulations are based on the classical shell theory taking into account geometrical nonlinearity, initial geometrical imperfection and the Lekhnitsky smeared stiffeners technique with Pasternak type elastic foundation. The non-linear equations are solved by the Runge-Kutta and Bubnov-Galerkin methods. Obtained results show effects of material and geometrical properties, elastic foundation and imperfection on the dynamical response of reinforced FGM shallow shells. Some numerical results are given and compared with ones of other authors.
机译：本文对偏心加筋的功能梯度双曲浅壳在弹性基础上承受轴向压缩载荷和横向载荷的非线性动力响应进行了分析研究。这些公式基于经典壳理论，考虑了几何非线性，初始几何缺陷以及带有Pasternak型弹性基础的Lekhnitsky涂抹加强筋技术。非线性方程由Runge-Kutta和Bubnov-Galerkin方法求解。所得结果表明，材料和几何特性，弹性基础和缺陷对增强的FGM浅壳动力响应的影响。给出了一些数值结果，并与其他作者进行了比较。

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