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Stability of the Shallow Axisymmetric Parabolic-Conic Bimetallic Shell by Nonlinear Theory

机译:非线性理论的浅轴对称抛物线形双金属壳的稳定性

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摘要

In this contribution, we discuss the stress, deformation, and snap-through conditions of thin, axisymmetric, shallow bimetallic shells of so-called parabolic-conic and plate-parabolic type shells loaded by thermal loading. According to the theory of the third order that takes into account the balance of forces on a deformed body, we present a model with a mathematical description of the system geometry, displacements, stress, and thermoelastic deformations. The equations are based on the large displacements theory. We numerically calculate the deformation curve and the snap-through temperature using the fourth-order Runge-Kutta method and a nonlinear shooting method. We show how the temperature of both snap-through depends on the point where one type of the rotational curve transforms into another.
机译:在此贡献中,我们讨论了通过热载荷加载的所谓抛物线圆锥形和板抛物线型壳的薄,轴对称,浅双金属壳的应力,变形和咬合条件。根据考虑变形体上力平衡的三阶理论,我们提出了一个模型,该模型对系统的几何形状,位移,应力和热弹性变形进行了数学描述。这些方程式基于大位移理论。我们使用四阶Runge-Kutta方法和非线性射击方法来数值计算变形曲线和骤升温度。我们展示了两种搭接的温度如何取决于一种类型的旋转曲线转换为另一种类型的点。

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  • 来源
    《Mathematical Problems in Engineering》 |2011年第3期|p.1-30|共30页
  • 作者

    M. Jakomin; F. Kosel;

  • 作者单位

    Faculty of Maritime Studies and Transport, University of Ljubljana, Pot Pomorscakov 4, 6320 Portorot, Slovenia;

    Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6,1000 Ljubljana, Slovenia;

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