yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

I'm working on the code atm. Just two remarks for now :

1) //! stretch ratio ?(n) 
(http://en.wikipedia.org/wiki/Finite_strain_theory#Stretch_ratio)

This comment is wrong, the strectch ratio is |F.x|/|x|, which is a 
function of non-diagonal terms. The values returned by getStretchRatio 
are not stretchRatios, they have no clear meaning and are not invariants 
of F.
As mentionned before, out of diagonal terms have an effect on stretch 
ratios (this is why I don't know how to work with _size without Hsize).


2) The stress update is not done at each step, this is a problem since 
the size of the period will be controlled based on outdated values.

I think I'll commit to a branch, I have too many changes in view and I 
don't want to mess with the trunk.

Bruno



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