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 — deformation
• stress — strain
• stiffness method — flexibility method

• stress and strain (Hooke's law.)

${\displaystyle \sigma =E\epsilon ⟺\epsilon =\frac{1}{E}\sigma }$

• Duality (electrical circuits)
• Hydraulic analogy
• List of dualities
• Mechanical–electrical analogies
• Series and parallel springs

• Fung, Y. C., A First Course in CONTINUUM MECHANICS, 2nd edition, Prentice-Hall, Inc. 1977

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