Compute von Mises equivalent stress: σ_vm = √(σ_x² − σ_xσ_y + σ_y² + 3τ_xy²). Failure is predicted when σ_vm ≥ σ_yield. More accurate than Tresca criterion for ductile materials.
2D stress state at a point. All stresses in MPa.
Enter the values for the patient or scenario you are assessing. Compute von Mises equivalent stress: σ_vm = √(σ_x² − σ_xσ_y + σ_y² + 3τ_xy²). Failure is predicted when σ_vm ≥ σ_yield. More accurate than Tresca criterion for ductile materials. Use the von mises stress result to inform your clinical assessment.