Shear Stiffness DQy for C-Core Sandwich Panels
Shear Stiffness DQy for C-Core Sandwich Panels
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DOI：
10.1061/(asce)0733-9445(1996)122:8(958
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发表时间：
1996-08
期刊：
影响因子：
--
通讯作者：
T. Fung;K. Tan;T. Lok
中科院分区：
文献类型：
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作者：
T. Fung;K. Tan;T. Lok
C芯夹层板由两个面板组成，面板的顶部和底部连接到C形加强筋的芯。这种类型的夹层板在芯部方向上具有高的弯曲和剪切刚度特性。然而，在横向方向上，这两个刚度特性相对较弱，特别是剪切刚度。本文推导并研究了C芯夹层板在弱方向上的剪切刚度。由于几何形状和不连续的核心配置，在较弱的方向上的剪切刚度必须从第一原理推导。通过假设递推条件，作者以前推导出了在较弱方向上的剪切刚度的近似表达式。这里描述的工作提出了一个更精确的公式，考虑到面板和C型芯加劲肋的凸缘之间的接触相互作用。由卡氏第二定理导出相容性方程。剪切应变...
A C-core sandwich panel consists of two facing plates connected top and bottom to a core of C-shaped stiffeners. Sandwich panels of this type have high bending and shear-stiffness characteristic in the direction of the core. In the transverse direction, however, both stiffness properties are relatively weak, in particular the shear stiffness. In this paper, the shear stiffness in the weaker direction for C-core sandwich panels is derived and studied. Due to the geometry and discontinuity of the core configuration, the shear stiffness in the weaker direction must be derived from the first principle. By assuming the recurrence condition, the writers previously derived an approximate expression for the shear stiffness in the weaker direction. The work described here presents a more accurate formulation, taking into account the contact interaction between the facing plates and the flanges of the C-core stiffeners. The compatibility equations are obtained from Castigliano's second theorem. The shear strain of ...