Box Compression for Copy Paper Boxes - Applying McKee's Formula

摘要

A set of copy paper boxes was examined for the vertical compression strength (BCT), board caliper and edge compression strength (ECT) in the orientation of the vertical loading. A simplified version of the McKee formula was fitted to the data set and the resulting equation improves the prediction from 52% to 25 % average error. A further simplification in testing requirements is shown to be provided by replacement of ECT with an equivalent CD tensile stiffness measurement consisting of the product of the board basis weight and CD sonic velocity squared.