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首页> 外文期刊>Composite Structures >Postbuckling of piezolarninated cylindrical shells with eccentrically/concentrically stiffeners surrounded by nonlinear elastic foundations
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Postbuckling of piezolarninated cylindrical shells with eccentrically/concentrically stiffeners surrounded by nonlinear elastic foundations

机译：具有非线性弹性基础包围的偏心/同心加劲肋的压电扁圆柱壳的后屈曲

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摘要

A fully analytical approach on thermal and mechanical buckling and postbuckling of cylindrical shell surrounded on nonlinear elastic foundation is presented. The shell is composed of composite material, piezoelectric actuator, and eccentrically/concentrically isotropic stringers and rings. The equilibrium and compatibility equations of shell are derived based on Kirchhoff assumptions taking into account von Karman nonlinearity. Two types of simply-supported boundary conditions are considered as freely movable and immovable edges. The equations are solved by definitions of stress function and applying Galerkin method. Numerical examples are well verified with available data in the literature. Several parametric investigations are conducted to examine the effects of voltage, different stiffeners, lay-up configuration, and nonlinear elastic foundations on equilibrium paths. (C) 2017 Elsevier Ltd. All rights reserved.
机译：提出了一种基于非线性弹性基础的圆柱壳热，机械屈曲和后屈曲的完全分析方法。外壳由复合材料，压电致动器以及偏心/同心各向同性的桁条和环组成。基于Kirchhoff假设并考虑了von Karman非线性，得出了壳的平衡和相容方程。两种简单支持的边界条件被认为是可自由移动和不可移动的边缘。通过定义应力函数并应用Galerkin方法求解方程。数值示例已得到文献中可用数据的充分验证。进行了几项参数研究，以检查电压，不同的加劲肋，叠层结构以及非线性弹性基础对平衡路径的影响。 （C）2017 Elsevier Ltd.保留所有权利。

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