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论文研究了由正六角形胞元构成的正六角形蜂窝夹芯层弯曲刚度.由于正六角形蜂窝夹芯层受面内载荷作用时在胞元斜壁上引起的弯矩与受面外载荷作用时在胞元斜壁上产生的弯矩有所不同,因此,基于面内变形的正六角形蜂窝夹芯层面内等效弹性参数不能用于计算正六角形蜂窝夹芯层弯曲变形.论文基于正六角形蜂窝夹芯层产生弯曲变形时三胞元壁板连接处转角为零的条件会导致正六角形胞元斜壁产生扭曲变形的事实,提出了一种新的正六角形蜂窝夹芯层理论分析方法.用论文方法计算得到的数值结果与有限元商用软件MSC.Marc计算得到的数值解进行对比,表明论文方法不但有效而且可行.
In this paper, the bending stiffness of hexagonal honeycomb core sandwich layer composed of positive hexagonal cells is studied.When the bending moment caused by the cell oblique wall on the hexagonal honeycomb sandwich layer is affected by the in-plane loading, Therefore, the equivalent elastic parameters of the hexagonal honeycomb sandwich layer based on the in-plane deformation can not be used to calculate the bending deformation of the hexagonal honeycomb sandwich layer.Based on the hexagonal honeycomb clip The condition that the corner of the triple cell wall joins when the core layer is bent and deformed will lead to the distortion of the positive hexagonal cell oblique wall, and a new theoretical analysis method of hexagonal honeycomb sandwich is proposed. The numerical results calculated by the method are compared with the numerical solutions calculated by the finite element commercial software MSC.Marc, which shows that the essay method is not only valid but also feasible.