Wellbore Genius
Mohr circle — slip tendency
Drag the σ₁ and σ₃ handles to resize the Mohr circle. Slip tendency, dilation tendency and Coulomb failure update live.
Mohr circle — drag σ₁ and σ₃
| θ (normal to σ₁) [°] | σₙ [psi] | τ [psi] | σₙ,eff [psi] | Slip tend. Tₛ | Dilation Tₐ | Status |
|---|---|---|---|---|---|---|
| 30° | 8000 | 1732 | 4000 | 0.433 | 0.250 | Stable |
| 45° | 7000 | 2000 | 3000 | 0.667 | 0.500 | Slipping |
| 60° | 6000 | 1732 | 2000 | 0.866 | 0.750 | Slipping |
| 75° | 5268 | 1000 | 1268 | 0.789 | 0.933 | Slipping |
Drag the σ₁ and σ₃ handles along the σₙ-axis to resize the Mohr circle. The red line is the Coulomb failure envelope (τ = μ·σₙ,eff + C₀); points crossing it are critically stressed.