Hertzian Theory Repulsion between Elastic Bodies

1 Hertzian Theory (Repulsion between Elastic Bodies) 

Hertz established his famous theory about the contact between two elastic spheres in 1882 [10]. The theory assumes normal stress Pi has an elliptical distribution on the radial coordinate r in the contact area, that is. 

Equation 17.1 implies that the maximum contact pressure, p r = 0), is 150% of the averaged pressure, Pijncp-. It also relates indentation length 81 to the contact radius a by 

---