Statically indeterminate torsion refers to a situation in structural mechanics where a component or structure is subjected to torsional loads (twisting forces) and the resulting internal forces cannot be determined solely by applying equilibrium equations.
Where:
- is the angle of twist,
- is the applied torque,
- is the length of the shaft,
- is the shear modulus of elasticity of the material,
- is the polar moment of inertia of the cross-sectional area of the shaft.