Fig. 4
From: A three-phase contact-breakage model for brittle spherical particles with conical nucleus formation

A plot of Κmob along the line normal to and through the center of the loaded area for σc = 50 MPa, σt = 3 MPa, ν = 0.3, a = 2.7 mm and R = 25 mm. The position where Κmob = Κ when crushing occurs is the vertex of the conical nucleus.