Mohr-Coulomb Model

The Mohr-Coulomb model is a way engineers predict how materials like soil or rocks will behave under stress. It relates the shear strength (resistance to sliding) of a material to the normal stress (pressure perpendicular to the surface) using two parameters: cohesion (internal stickiness) and the angle of internal friction (resistance due to friction). Essentially, it describes the conditions under which a material will stay stable or fail, helping in the design of foundations, slopes, and tunnels by understanding how these materials respond to forces applied to them.