Elastic bending analysis for plate of single-wall corrugated fiberboard - On rectangular concentrated uniform distribution load applied at optional position in plate of supporting edges

An elastic analysis of stress and deformation was attempted for the anisotropic plate of the single wall corrugated fiberboard (SWCF) supported by four edges under the uniform concentrated rectangular distribution load po applied in the optional range of the plate. Distributions of stresses and deflections etc. on the outer surface of jute liner (JL) of the SWCF plate obtained by this analysis were discussed, and these characters were done obviously. Obtained results are as follows. Large values of deflection and normal stresses (in machine and cross directions) on the JL sur-face of the SWCF plate concentrate remarkably in the loading range and are zero in plate edges. The value of its deflection increases with the increase of the distances from the loading center to the four edges. The maximum value of the deflection is near the center of the loading distribution, and increases with increases of distances from the its load center to the four edges. And maximum values of normal stresses are at the loading center, and increase with the increase of the loading concentration. The maximum value of supporting forces in edges is at the shortest position from the center of the distribution loading. Large absolute value of shear stress on the JL surface concentrates remarkably near the loading range, and this stress near the loading center distributes antisymmetrically to its center.