Relations between Elastic Bending Deformation Strength, Shape and Elastic Moduli for Case of Anisotropic Corrugated Fiberboard Box Shape (Square Tube) under Uniform Compression

Abstract

Elastic bending deformation analysis for case of anisotropic corrugated fiberboard box shape (square tube : width L, height h and thickness T=5.54 mm) under uniform compression (-0.10 N⁄mm²) on upper and lower edges was performed. And characteristic behavior of stress and deflection for its case was discussed.
Absolute maximum normal stress σ_bxmax^∗ in the width direction is at plate centers, and maximum normal stress σ_bymax in the height direction, maximum bending principal stress σ_b0max and maximum deflection w_max are at centers of side edges for side plate (L=350, h=300 mm) . Absolute maximum bending shear stress τ_bxymax^∗ and maximum bending principal shear stress τ_b0max^∗ are plate corners. σ_bxmax^∗, σ_bymax, τ_bxymax^∗ and w_max increase and decrease with L increase. And σ_bxmax^∗ and w_max increase and decrease, and σ_bymax and τ_bxymax^∗ increase with h increase. σ_bxmax^∗, σ_bymax, τ_bxymax^∗ and wmax increase with Ex increase and decrease with E_y increase. σ_bxmax^∗ and σ_bymax increase, and τ_bxymax^∗ and w_max increase and decrease with ν_xy increase.