ABSTRACT
The methods for the analysis of fatigue and fracture behavior of elastomers are based on two different approaches: the global method, called as conventional TFA method, developed by Rivlin and Thomas (Rivlin & Thomas 1952) and the local method, known as “J-Integral”, developed by Cherepanov and Rice (Cherepanov 1967, Rice 1968). The both methods were developed for an elastic materials. However, the mechanical behavior of rubber is far from being elastic, making the simplified approaches questionable (Dedova 2015). In this work the dissipative energy was analysed with respect to thermal effects during dynamic loading. It has been provided, that most of the mechanical produced energy is converted into thermal energy during the loadung process. Thereby only a certain amount of the heat can be transferred again in mechanical energy during unloading, while the other amount is lost as dissipative heat. On the other side, one part of the energy, which is transferred to the sample is saved in the specimen as heat, while another part goes by heat-exchange into the surrounding. These contributions were discussed and analysed separately in this work. The understanding of the dissipative effects during cyclic loading and the energy transport processes enables to apply the methods for analysing of tearing energy of rubber.
