Stress State Definitions
The Mohr-Coulomb failure criterion (or "envelope") represents:

Question

Stress State Definitions 
 The Mohr-Coulomb failure criterion (or "envelope") represents:

Answer

The distribution of pore water pressure within a soil.

Answer

The soil's shear strength at any particular normal effective stress.

Answer

The combination of normal and shear stresses acting on planes at different orientations at one point.

Crowdly