fedoo.constitutivelaw.HolmesMowPermeability

class HolmesMowPermeability(k0, n0, kappa=2.0, M=4.638)

Strain-dependent permeability of Holmes and Mow.

k(J) = k0 * ((J - n0) / (1 - n0))^kappa * exp(M * (J^2 - 1) / 2)

Standard model for articular cartilage. Permeability drops in compression (J < 1) and increases in tension (J > 1).

Reference: Holmes M.H. and Mow V.C., 1990, J. Biomech.

Parameters:

• k0 (float) – Reference permeability at J = 1.

• n0 (float) – Initial solid volume fraction (1 - phi_f0).

• kappa (float, default 2.0) – Porosity power-law exponent.

• M (float, default 4.638) – Exponential strain-stiffening coefficient.

__init__(k0, n0, kappa=2.0, M=4.638)

Methods

HolmesMowPermeability.__call__(J[, sv])

Call self as a function.