Shaft Torsion Simulator
Twist a circular shaft in 3D and watch its painted surface lines shear into helices, while the loaded end face shows the shear-stress gradient: zero at the centre, maximum at the surface. Read the angle of twist, sweep the diameter against the allowable stress, and compare a solid shaft against a hollow one of the same outer diameter.
Drag to orbit, scroll to zoom. The displayed twist is exaggerated; the real angle is read on the charts below.
Parameters
Loading
The safety factor is the allowable shear stress divided by the peak surface shear stress. Raise the torque until the diameter-sweep chart drops below the allowable line.
Geometry (mm)
Set the inner diameter above zero for a hollow shaft and watch the hollow-vs-solid chart show how little torque capacity it costs you.
Material
Steel is about 79 GPa, aluminium about 26 GPa. G sets the angle of twist but not the stress.
Optional. The charts and summaries already update live as you drag any parameter; this just forces an immediate full recompute.
Analysis Charts
The stress charts show what happens inside the shaft for your current parameters; the design charts sweep one parameter so you can size the shaft. The teal marker is the current value. Drag any parameter and every curve updates live.
Shear stress across the radius
Angle of twist along the length
Peak shear vs outer diameter
Hollow vs solid (same outer diameter)
Download Professional Resources
Generated for your exact shaft parameters: data, design specs, and a lab report.
All resources generated for your exact shaft parameters. 1 USD per item, or buy all as a package.