. Author manuscript; available in PMC: 2012 Nov 1.

Published in final edited form as: J Mech Behav Biomed Mater. 2011 Jul 7;4(8):2024–2030. doi: 10.1016/j.jmbbm.2011.06.022

Table 1.

Material parameters from the hyperelastic anisotropic analysis for specimens subjected to simple shear. The strain-energy density function utilized accurately describes the material behavior across all groups as demonstrated by low RMSE values. Superscript a defines the fiber family (a=1:Circumferential, a=2:Radial) which the according parameter belongs to.

Region	Orientation	Parameters [MPa]			RMSE
Region	Orientation	c	α^a₃	α^a₄	RMSE
Anterior	Parallel^a⁼¹	0.609	0.282	1.586	0.001
Anterior	Perpendicular^a⁼²	0.609	0.299	1.603	0.018

Central	Parallel^a⁼¹	0.543	0.236	1.577	0.013
Central	Perpendicular^a⁼²	0.543	0.214	1.540	0.012

Posterior	Parallel^a⁼¹	0.544	0.171	1.501	0.012
Posterior	Perpendicular^a⁼²	0.544	0.247	1.573	0.010