The nonlinear viscoelastic behaviour of Hydrothane®, a hydrophilic polyurethane used for biomedical applications, has been studied. The material has been tested in stress-relaxation experiments in a range of deformation up to 25%. Isochrone curves have been predicted by using the rubber elasticity theory and separating strain and time effect. Stress-strain curves obtained at different strain rates have been interpreted introducing strain rate dependent scaling factors.
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This paper was accepted for publication after the 1995 conference of the European Society of Biomaterials, Oporto, Portugal, 10–13 September.
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Iannace, S., Ambrosio, L., D'amore, A. et al. Nonlinear viscoelasticity of Hydrothane® . J Mater Sci: Mater Med 7, 305–307 (1996). https://doi.org/10.1007/BF00058572
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DOI: https://doi.org/10.1007/BF00058572