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Difference in simple shear and rotational strain

  1. Jun 15, 2010 #1
    Is simple shear same as rotational strain? or, is it a type of rotational strain?
  2. jcsd
  3. Aug 16, 2010 #2
    More on http://en.wikipedia.org/wiki/Shear_stress" [Broken].

    More on http://en.wikipedia.org/wiki/Strain_(materials_science)#Strain".

    Put simply, shear is a stress applied parallel or tangential to the surface of a material, while normal stress is applied perpendicularly. The units are force/area.

    Strain, on the other hand, is the measure of deformation in the material, and those units are in length/length (it's a dimensionless quantity).

    Thus, for any given amount of sheer, the harder the material, the less the strain.
    Last edited by a moderator: May 4, 2017
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