yade-dev team mailing list archive

[chiara modenese <c.modenese@xxxxxxxxx>]

On 15 July 2010 21:00, chiara modenese <c.modenese@xxxxxxxxx> wrote:

> This is because ScGeom algorithms don't need total strain (*). (*) One
> exception : HertzMindlin, thats why I suggested deriving it from Dem3Dof
> rather than ScGeom.
>
> Hi guys, perhaps I am escaping something. Why would HM need total strain?
> As it is now it is incremental, same way as computed in PFC.
> Anyway, PFC or not I have been studying Mindlin's paper and I plan to code
> the exact formulation in the future. And again it is all incremental. So
> no problem on my side with the current design.
>

One more note. Even if ScGeom is using the incremental formulation, it is
always possible to calculate the total shear elastic, and eventually also
plastic, displacement. It can be done, incrementally, in Law2 if needed.
Same way we get the shear force. What is the problem with that?

Chiara