Talk:Stretch ratio

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I referred to this page's reference, and it say elongation is the deformation due to tensile Force.

In engineering, deformation is the change in length = final length - initial length So should elongation also means the change in length, but not ratio of L final / L initial?

Learner in Doubt. - EnggMan (talk • contribs) 08:57, 9 March 2008

The same referenced glossary does not give a definition of deformation, so I bet the authors are just using the lay definition of deformation: "a change in the shape or dimensions of a body". -AndrewDressel (talk) 15:10, 9 March 2008 (UTC)

Thanks you very much AndrewDressel. If the definition of deformation is "a change in the shape or dimensions of a body", what does "change" means? Is it the final length (size) minus the original length (size)? EnggMan new (talk) 11:13, 13 March 2008 (UTC)