Strength and life criteria for corrugated fiberboard by three methods

Abstract

The conventional test method for determining the stacking life of corrugated containers at a fixed load level does not adequately predict a safe load when storage time is fixed. This study introduced multiple load levels and related the probability of time at failure to load. A statistical analysis of logarithm-of-time failure data varying with load level predicts the safe load that would yield a 5% probability of failure for any given storage time. Results were used to (a) quantify the performance of two corrugated fiberboards having significantly different components and (b) show the differences obtained between a dynamic edgewise compression test at standard atmospheric conditions and a safe load level test using multiple load levels and cyclic humidity. The average strength of the stronger material in a dynamic crush test was 30% greater than that of the weaker material. However, the safe load level of the stronger material that would yield a 5% probability of failure after 48 h in the cyclic humidity environment was 115% greater than the weaker material.

Citation

Urbanik, Thomas J. 1997. Strength and life criteria for corrugated fiberboard by three methods. Proceedings : 3rd International Symposium: Moisture and Creep Effects on Paper, Board and Containers, Rotorua, New Zealand, 20-21 February 1997. Rotorua, N.Z. : Papro New Zealand, 1997: pages 247-256.