Table 3.

Material constants used to fit the brain tissue experimental data.

Material samples	μ (kPa)	N	A1 (kPa)	A2 (kPa)	b	C (kPa)	f (%)
Frontal lobe (sagittal direction: tension)	2.6	1.065	−150	−3000	2.7	4.6	1
Frontal lobe (sagittal direction: compression)	2.6	1.065	−150	−3000	2.5	0.6	1
Occipital lobe (frontal direction: tension)	2.65	2.5	−350	650	2.7	3.8	0.93
Occipital lobe (frontal direction: compression)	2.65	2.5	−350	650	2.7	3.8	0.93