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EngSciNZ
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Homework Statement
What do you understand by the following terms; (i) principal stretch (ii) an
anisotropic material (iii) a dilatant deformation, (iv) a Lagrangian description of a
deformation, and (v) a pure deformation.
Homework Equations
Am just trying to find descriptions for these, am trying to research my papers before I sit them this year, but there are no suggested texts and couldn't find good definitions for all of these from searching on the internet.
The Attempt at a Solution
I pressume principal stretch is going to be similar to principal strain? And hence the amount of elongation/contraction in the principal strain direction...
Anisotropy is differing properties in along different axis.
Dilatancy is to do with increased shear stress causing increased viscosity and sometimes solidification? But couldn't work out what the deformation was.
Didn't have much luck with the last two as they seem to be quite general terms.