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EntityQ826575· pop 42· linked from 193 articles

Also known as mechanical torsion

twisting of an object due to an applied torque

Wikidata facts

Subclass of
deformation
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Commons category
Torsion
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via Wikidata · CC0

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Encyclopedic overview

Torsion of a square section bar Example of torsion mechanics

In the field of solid mechanics, torsion is the twisting of an object due to an applied torque. Torsion could be defined as strain or angular deformation, and is measured by the angle a chosen section is rotated from its equilibrium position. The resulting stress (torsional shear stress) is expressed in either the pascal (Pa), an SI unit for newtons per square metre, or in pounds per square inch (psi) while torque is expressed in newton metres (N·m) or foot-pound force (ft·lbf). In sections perpendicular to the torque axis, the resultant shear stress in this section is perpendicular to the radius.

Excerpted from Wikipedia’s “torsion” article, available under the CC BY-SA 4.0 licence.