Open Access

ARTICLE

Identification of Parameters of a Nonlinear Material Model Considering the Effects of Viscoelasticity and Damage

Jan Heczko¹, Radek Kottner², Tomáš Kroupa²

1 Department of Mechanics, Faculty of Applied Sciences, University of West Bohemia
2 European Centre of Excellence, New Technologies for Information Society, Faculty of Applied Sciences, University of West Bohemia

Computers, Materials & Continua 2013, 33(3), 257-273. https://doi.org/10.3970/cmc.2013.033.257

Abstract

This work deals with mechanical properties of a rubber material that is used in modern tram wheels as a damping element. Nonlinear static response as well as strain softening and hysteresis are captured in the material model that is selected. Method of identification of the model's parameters is developed. The identification method relies on successive minimizations with respect to different sets of parameters. Tests in tension, compression and simple shear are performed. Parameters of the material model are identified based on the tension and compression data, while the shear data are used for validation only.

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Keywords

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