In this work, a visco-hyperelastic numerical model is proposed, based on the decoupling of the strain and time dependent contributions. Four different rubber blends, used for the production of athletics tracks, have been experimentally characterized in compression under varying loading histories. A robust identification procedure provided reliable constitutive parameters to be implemented in the numerical simulations. Model predictions have been validated against the outcome of impact tests performed on the different materials using an Artificial Athlete. Results demonstrate that the presence of a viscoelastic component grants a more accurate description of the energy return characteristics of rubbers under dynamic conditions.

A visco-hyperelastic numerical model for the dynamic behaviour of rubbers

L. Andena;F. Cotta Ramusino;S. Tagliabue;S. Zalaffi
2022-01-01

Abstract

In this work, a visco-hyperelastic numerical model is proposed, based on the decoupling of the strain and time dependent contributions. Four different rubber blends, used for the production of athletics tracks, have been experimentally characterized in compression under varying loading histories. A robust identification procedure provided reliable constitutive parameters to be implemented in the numerical simulations. Model predictions have been validated against the outcome of impact tests performed on the different materials using an Artificial Athlete. Results demonstrate that the presence of a viscoelastic component grants a more accurate description of the energy return characteristics of rubbers under dynamic conditions.
2022
Constitutive Models for Rubber XII: Proceedings of the 12th European Conference on Constitutive Models for Rubber (ECCMR 2022), September 7–9, 2022, Milano, Italy
9781003310266
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1225284
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