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A Hybrid Nonlinear Constitutive Model: Comparisons With Multiple Step Data for a Polyurethane Rubber
Published
Author(s)
V Rouiller, G B. McKenna
Abstract
A nonlinear constitutive equation based on the model of Bernstein, Kearsley and Zapas (BKZ) is developed by noting that the BKZ model has a structure that looks like a time-dependent finite elasticity. By postulating, as did Valanis and Landel (VL) for rubber, that the strain potential function can be represented by a separable function in the stretches we develop a hybrid VL-BKZ viscoelastic model. Results of model predictions for multiple step deformation and stress histories are compared with experiments using a polyurethane elastomer.
Proceedings Title
ANTEC (Annual Technical Conference) of the Society of Plastics Engineers
Rouiller, V.
and McKenna, G.
(1998),
A Hybrid Nonlinear Constitutive Model: Comparisons With Multiple Step Data for a Polyurethane Rubber, ANTEC (Annual Technical Conference) of the Society of Plastics Engineers
(Accessed October 6, 2024)