Von Mises Stress Calculator

Equivalent (von Mises) stress for a triaxial stress state — a standard ductile-yield screening check.

Principal stress σ1 (MPa)Principal stress σ2 (MPa)Principal stress σ3 (MPa)Material yield strength Sy (MPa), optionalCalculate

Equation

σᵥ = √(0.5[(σ1−σ2)² + (σ2−σ3)² + (σ3−σ1)²])

Assumptions

Isotropic ductile material, static yield screening only. Does not cover fracture, fatigue or plastic collapse.