Video Extensometer Picture Analysis For Rubberlike Materials Modeling

The paper presents a new way of hyperelastic materials specimens testing. For some time now Finite Element Method (FEM) Software allows to calculate stress in this kind of materials which make an engineering work easier. Unfortunately the results of the classical hyperelastic materials tests done so far do not give a possibility to use full abilities of FEM software. Furthermore, the attempts of conversion of classical type of data to FEM expected ones, do not lead to a correct solution. Such input data are accepted by software, but not physically correct. The specimens used for new types of elastomer tests are completely different, they are of different shape, they have to be hold and measured in a different way. These differences are described in the paper.