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A V-core sandwich panel consists of two facing plates and a core of V-shaped stiffener. Sandwich panels of this type have high bending and shear-stiffness characteristics in the direction of the core placement. In the transverse direction, however, stiffness, especially the shear stiffness, is relatively weak. In this paper, the shear stiffness in the weak direction for V-core sandwich beams is analyzed. Due to structural geometrical compatibility, a theoretical expression for calculating the deflection in its weaker direction of the V-core sandwich beam is derived. The presented equation takes into account the contact interaction between the facing plates and the flanges of the V-core stiffener. A detailed comparison between the theoretical and numerical results is conducted. Good agreement is obtained between the two results when geometrical parameters are in a valid range, and suitable geometrical range is finally presented based on error analysis.

Prediction on Deflection of V-core Sandwich Panels in Weak Direction