Abstract
An elastic analysis of kraftliner (KL) and semichemical corrugating medium (SCM) for single wall corrugated fiberboard (SCF) under the perpendicular load to the KL surfaces was studied by the finite element method (FEM). Stresses obtained by this method were discussed in the agreement for results induced by the stress formation of the previous paper and for FEM results of the stress concentration at the notch of this KL• SCM joint shape under the tension.
Then following results are obtained.
(1) The deformations for KL and SCM are made by the bending of the fixed beam and the stress concentration of notch shape at the KL •SCM joint under the moment induced by the applied load. Ratio of normal stress σx of the machining direction to normal stress σy of the loading direction is about 1.2 at the near KL • SCM joint.
(2) The values of stress components made by the constraint of the geometrical condition for SCF are very small. The values of stresses decrease with the increase of the contact width of KL· SCM joint.
