Duality (mechanical engineering)

In mechanical engineering, many terms are associated into pairs called duals. A dual of a relationship is formed by interchanging force (stress) and deformation (strain) in an expression.

Here is a partial list of mechanical dualities:


 * force &mdash; deformation
 * stress &mdash; strain
 * stiffness method &mdash; flexibility method

Constitutive relation

 * stress and strain (Hooke's law.)


 * $$\sigma = E \varepsilon \iff \varepsilon = \frac{1}{E} \sigma \, $$