The specimen dimensions used for these tests are w=6.35 mm and h=1.78 mm. Material properties corresponding to a normal human cartilage were used, modulus of elasticity E=0.675 MPa, Poisson’s ratio ν=0.125, fluid fraction ratio θ^{f}=0.83, permeability coefficient κ=7.6×10^{15} m^{4}N^{1}s^{1}. Confined compression is a sample placed in a confining chamber and compressed with a permeable piston. The problem is one dimensional in z.

