The Behavior of a Coarse Granular Material under Complex Stress Conditions

Figure 16

The failure states in the π plane and the envelopes of strength criteria: (a) σ₃ = 0.2 MPa; (b) σ₃ = 0.4 MPa; (c) σ₃ = 0.8 MPa; (d) Lade–Duncan envelopes under different confining stresses.

(a)

(b)

(c)

(d)