|type de publication
||communication internationale avec actes publiés
|date de publication
||Ovalle Rodas Cristian Manuel; Zaïri Fahmi; Naït Abdelaziz Moussa|
| || |
||RubberCon 2014: Advanced Engineering & Materials Developments
||de 14-05-2014 à 15-05-2014
| nom des actes
||Proceedings of the International Rubber Conference 2014
| || |
||Rubbers are known to exhibit self-heating under cyclic loading. This increase in temperature has a dramatic effect on the stress-strain behaviour of the rubber compound. In this work, a physically consistent model is developed to describe the mechanical response of filled rubbers over a wide range of temperatures. The non-linear large strain mechanical behaviour is described via a Langevin formalism. The filler effect is included by the amplification of the first strain invariant. The temperature effect is included by a thermally evolving chain density function.
Experimental data of a styrene-butadiene rubber with fixed carbon-black content have been obtained at different temperatures. In addition, micromechanical models using two-dimensional finite element simulations were constructed considering different arrangements of the microstructure. A comparison between analytical results and experimental-numerical data shows that the proposed constitutive model offers a satisfactory way to predict the material stress-strain response at different temperatures.