Abstract
Relations between the strengths of single-faced corrugated fiberboard and the shapes or Young's modulus of the kraft liner (KL) and the semichemical corrugated medium (SCP medium) are analyzed under the uniform bending around the moment axis in the machine direction. Values of EfS (bending strength per unit mass for SCP medium) and Eks (strength per unit mass for KL) are discussed.Obtained results are as follows;(1) Absolute maximum stresses σsmax and σkmax of SCP medium (CM) and KL decrease with the increase of thickness Ts and wave height h for CM and thickness Tk for KL, and also increase with the increase of wavelength L for CM.(2) σsmax decreases and σkmax increases with the increase of Young's modulus Ek for KL.(3) Efs decreases initially and comes to increase gradually with the increase of T. On the contrary, EfS increases at first, then turns to decrease gradually with the increase of L. Efk increases with the increase of Ts and decreases with the increase of L. Efs increases and Efk decreases with the increase of Ek and Tk.
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