Table 4.

Material models parameters used in previous infant FE models.

Tissue	Linear Models			Study
	Elastic Modulus (MPa)	Poisson's Ratio	Density (kg/m3)
Scalp	16.7	0.42	1200	Zhou et al. (1997) (Adult)
Skull	500	0.22	2150	Coats and Margulies (2006)
Suture	8	0.22	2150	Coats and Margulies (2006)
Membranes	31.5	0.45	1140	Zhou et al. (1997) (Adult)
CSF	0.012	0.49	1040	Willinger et al. (1995) (Adult)
	Nonlinear Models
	Viscoelastic	Ogden Hyperelastic
Brain	G0 = 5.99e-3 MPa, G∞ = 2.32e-3 MPa, β = 0.09248 s−1	μ1 = 53.8 Pa, α1 = 10.1, μ2 = −120.4 Pa, α2 = −12.9		Thibault and Margulies (1998), Li et al. (2017)
Suture		μ1 = 1.48 × 104 Pa, α1 = 6.9		Li et al. (2017)
Scalp		Outer: μ1 = 1.30 × 104 Pa, α1 = 24.2 Inner: μ1 = 3.99 × 103 Pa, α1 = 8.8		Li et al. (2017)
Skull	(Orthotropic Elastic, Age Dependent) Five month old infant: E1 = 731.7 MPa, E2 = E3 = 266.2 MPa, G23 = 111.8 MPa, G12 = G31 = 194.8 MPa			Li et al. (2017)
		Mooney-Rivlin Parameters
Dura		C1 = 1.18 MPa, C2 = 0.295 MPa		Li et al. (2017)