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 — deformation stress — strain stiffness method — flexibility method
Examples
Constitutive relation
stress and strain (Hooke's law.)
See also Duality (electrical circuits) Hydraulic analogy List of dualities Mechanical–electrical analogies Series and parallel springs
References
Fung, Y. C., A First Course in CONTINUUM MECHANICS, 2nd edition, Prentice-Hall, Inc. 1977