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.
Original language | English |
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Pages | 2138-2143 |
Number of pages | 6 |
State | Published - 1998 |
Event | Proceedings of the 1998 56th Annual Technical Conference, ANTEC. Part 1 (of 3) - Atlanta, GA, USA Duration: Apr 26 1998 → Apr 30 1998 |
Conference
Conference | Proceedings of the 1998 56th Annual Technical Conference, ANTEC. Part 1 (of 3) |
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City | Atlanta, GA, USA |
Period | 04/26/98 → 04/30/98 |