The Effect of Extensometers on the Mechanical Properties of the Polypropylene Under Uniaxial Tensile Loading

Abstract

The elastic modulus and yield strain of polypropylene were obtained by the tensile test at different temperature. Compare the physical performance parameters which were obtained with or without using the extensimeter, a linear relationship between the two schemes is presented in this article. The coefficient of the linear relationship was calculated by the two sets of data which are obtained with or without using the extensimeter, and the presented linear fitting represents the results more accurate. It greatly reduces the difficulty and intensity of the experiment and provides a more convenient method for the performance testing and testing of high polymer in automobile manufacturing industry.