We propose a predictive model for the dissipative behaviour of rubber-like materials. In the spirit of De Tommasi et al. [D. De Tommasi, G. Puglisi, G. Saccomandi, A micromechanics based model for the Mullins effect, J. Rheol. 50 (2006) 495– 512], we assume that at the scale of the polymeric network the material is constituted by a distribution of links with variable activation and fracture thresholds. By considering the recross-linking effect due to unloading we obtain a three-dimensional, non-linear damage model that describes the rate-independent hysteretic behaviour observed in rubber-like solids. The feasibility of the model in treating complex non-homogeneous deformation histories is shown through a numerical application.
A phenomenological model for healing and hysteresis in rubber-like materials / D'Ambrosio, P; DE TOMMASI, Domenico; Ferri, D; Puglisi, Giuseppe. - In: INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE. - ISSN 0020-7225. - 46:4(2008), pp. 293-305. [10.1016/j.ijengsci.2007.12.002]
A phenomenological model for healing and hysteresis in rubber-like materials
DE TOMMASI, Domenico;PUGLISI, Giuseppe
2008-01-01
Abstract
We propose a predictive model for the dissipative behaviour of rubber-like materials. In the spirit of De Tommasi et al. [D. De Tommasi, G. Puglisi, G. Saccomandi, A micromechanics based model for the Mullins effect, J. Rheol. 50 (2006) 495– 512], we assume that at the scale of the polymeric network the material is constituted by a distribution of links with variable activation and fracture thresholds. By considering the recross-linking effect due to unloading we obtain a three-dimensional, non-linear damage model that describes the rate-independent hysteretic behaviour observed in rubber-like solids. The feasibility of the model in treating complex non-homogeneous deformation histories is shown through a numerical application.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.