E1 GPa v1 database material properties>>
 E2 GPa v2 database material properties>>
 R1 mm R2 mm (see note1)
 Calculate the contact pressure and size with prescribed load
 F/L N/mm
 E' GPa R' mm
 b 10-3 m
 pm GPa pmax GPa
 Calculate the load with prescribed contact pressure
 pmax MPa  (pmax=4/π pm)
 E' GPa R' mm
 b 10-3 m
 pm MPa F/L N/mm
1) Acc. Hertz conditions: the contact stresses below the surface should not be distorted to a depth of at least 5 times the contact width b.