Warping

Warping is extensional deformation in the direction of the axis about which torque is applied. It is sometimes also termed deplanation.

Related Terms

• warping constant (also called warping moment of inertia, warping torsion constant; designations: $I_{\omega }$ or Cw)
• sectorial coordinate ($\omega$)
• sectorial area ($S_{\omega }$)
• shear center

See Also

• cross-section characteristics
• torsion

References

• Torsional Analysis of Steel Members - good description of design for torsion from practical point of view
• I-Beam Stress Analysis
• Restrained Torsion-Flexure of a Prismatic Member - theoretical treatment of torsion-flexure behavior