New method to Determine the Poisson Ratio for Plastic Materials instead of the Classical Method

Abstract

Many comments on determining Poisson ratio for plastic materials, especially the soft, by classical method using Longitudinal and Reveres tensometers due to their effects on the test result. Thus, poisson Ratio is Calculated based on Volume Stress State method for High Density Polyethylene, polypropylene random and polyvinyl chloride. The Results are compared with the Classical Method using Longitudinal and Reveres tensometers. The results showed that the two values are close and the values determined by the volume stress state method are slightly higher than the values determined by the classical method. This study has showed that we can determine the poisson ratio from volume stress method instead of the classical one.