ANALYSIS PROGRAM OF THICKNESS OF EACH AIR LAYER IN WINDING ROLL, RADIAL YOUNG'S MODULUS OF AIR LAYER, AND INTERNAL STRESS

摘要

PROBLEM TO BE SOLVED: To provide an analysis program of internal stress capable of analyzing the internal stress of a winding roll considering outflow of air from a roll end.;SOLUTION: This analysis program of internal stress of a winding roll with a web wound includes steps of: calculating thickness h_a0 (m) of an initial air layer formed between the winding roll and a newly-wound layer (step S6); calculating thickness h_a (m) of the air layer in the winding roll (step S7); and calculating radial stress σ_r in the roll (step S10).;COPYRIGHT: (C)2012,JPO&INPIT