Parts

Materials

Young’s Modulus

Poisson’s Ratio

Geometry (mm)

Femoral Head

Cobalt-Chromium-Alloy

200 Gpa

0.3

Sphere Radius 2 - 18 mm

Acetabulum

Polyethylene

0.64 Gpa

0.4

Sphere Radius 3 - 19 mm

Surface Properties

property

values

η (asperity/area density)

σ Standard deviation

β Mean asperity rad (R/σ)

200

E equiv. elasticity modulus