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. Author manuscript; available in PMC: 2013 Apr 16.
Published in final edited form as: Osteoarthritis Cartilage. 2012 Jul 31;20(11):1268–1277. doi: 10.1016/j.joca.2012.07.016

Table 1.

Values (maximum, minimum, mean and standard deviation) for the optimized material parameters

Ef0 (MPa) Efε (MPa) Enf (MPa) k0 (10−15m4/Ns) M
max 1.95 2.02 0.90 10.98 50.54
mean±std 0.59±0.48 0.61±0.61 0.23±0.22 3.66±2.86 17.26±14.64
min 0.03 0.01 0.02 0.82 0.50

Ef0 is the initial collagen network modulus, Efε the strain-dependent collagen network modulus, Enf the nonfibrillar matrix modulus, k0 the initial permeability and M the permeability strain-dependency factor.