Non-Circular Torsion Calculator

Calculate shear stress and angle of twist for rectangular, square, and elliptical cross-sections under torsion.

Torsional moment applied to the member.
N·m
Longer side for rectangle, semi-major for ellipse.
mm
Shorter side for rectangle, semi-minor for ellipse.
mm
Length of the member.
mm
Shear modulus. Steel: 80 GPa, Aluminum: 26 GPa.
GPa

Results

Max Shear Stress (Rect)-MPa
Angle of Twist (Rect)-degrees
Torsion Constant K-mm⁴
References: Roark's Formulas for Stress and Strain — Torsion