Constitutive Investigation on Viscoelasticity of PolyVinyl Butyral: Experiments Based on Dynamic Mechanical Analysis Method

Table 2

Summary of fitting results of FD model.

𝑇 (K)	𝜂	𝐸	𝑟	𝑅1	𝑅2
223	−3505.8	870.0281	−0.07107	0.638793	0.967624
233	516.3113	−1153.24	0.017639	0.87531	0.822305
243	718.745	−2757.43	0.023908	0.981593	0.942977
253	−401.135	265.9266	−0.01785	0.989054	0.827533
263	324.6833	−641.071	0.024936	0.987823	0.470596
273	486.5962	2520.5	0.110543	0.994913	0.773588
283	152.1968	4550.974	0.179521	0.992555	0.986505
293	21.28383	706.851	0.396737	0.99876	0.994958
303	3.458494	290.9311	0.567295	0.999437	0.999731
313	1.408582	−12.8328	0.270329	0.951102	0.996986
323	0.615706	−1.01452	0.05711	0.931893	0.993724