Table 1.

Material parameters of the CJ determined by fitting hysteresis and ramp-hold tests using both Ogden and exponential strain energy density functions

	Exponential				Ogden
No.	A (Pa)	B	γi	τi (s)	μ (Pa)	α	γi	τi (s)
1	2.67	0.39	0.44, 0.30	0.97, 112	8.73	2.93	0.41, 0.30	1.02, 117
2	2.15	0.40	0.42, 0.37	1.04, 68.7	7.83	2.87	0.43, 0.31	1.08, 57.5
3	10.0	0.38	0.49, 0.28	0.84, 48.7	30.8	3.25	0.44, 0.31	0.86, 44.7
4	11.6	0.37	0.36, 0.49	1.26, 22.7	39.2	3.30	0.37, 0.49	0.67, 16.8
5	3.45	0.48	0.55, 0.36	0.98, 62.8	9.50	3.11	0.40, 0.35	1.06, 59.5
6	2.39	0.41	0.44, 0.34	1.03, 61.9	9.05	2.89	0.43, 0.34	1.01, 61.9
Mean	5.38	0.41	0.45, 0.36	1.02, 62.8	17.5	3.06	0.41, 0.35	0.95, 59.5
S.D.	3.88	0.04	0.06, 0.08	0.13, 32.7	12.6	0.17	0.02, 0.08	0.14, 36.5
Median	3.06	0.40	0.44, 0.34	1.01, 61.9	9.28	3.02	0.42, 0.31	1.02, 57.5