A formulation of elastic deformation was expressed for side plates in the case (width L/height h = 1/22) of the corrugated fiberboard box shape (CFBS) supported by upper and lower edges under uniform compression loading. Then from this formulation, behaviors for stress and strain were discussed.
Normal stresses σ
x, σ
y, and strains ε
x, ε
y in width and height directions for the plate are symmetric to center lines of the width and the height, and shear stress τ
xy is anti-symmetric. And ε
x is mainly plus and ε
y is minus, and the maximum of ε
x is in upper and lower edges and the maximum of |ε
y| is at distance L/7 from the upper or the lower edge in side edges. The maximum value of ε
x is about 10% to the maximum value of |ε
y|. The maximum of |σ
x| is constant to increases of L and h, and the maximum of | σ
y| increases a small with L increase and decreases a small with h increase.The maximum of|τ
xy|decreases obviously with L increase and increases obviously with h increase. The maximum of ε
xfirst increases a small and next decreases obviously with L increase, and first increases obviously and next decreases obviously with h increase. The change of the maximum of |ε
y| is a small to changes of L and h.
View full abstract