[Geoqus] problems with gravity and isostasy

[Gabriele Morra]

I use a subroutine called by the command *DLOAD. In the subroutine, 
then, I simply write a winkler foundation (an elastic force - 
proportional to the displacement) where the coefficient are given by 
the difference of buoyancy that I assume to exists between mantle and 
lithosphere.

If you want I can send you  my input file and my subroutine.

When I apply it to a system where there are also subducted slab, I 
deactivate the foundation at a certain depth (we assumed 10km, as the 
deepest trench in Marianas). More details on why and how to choose the 
constants are in a paper (Funiciello et al. , JGR 2003) or in the PhD 
thesis of S. Buiter.

ciao
Gabriele

On Mar 31, 2004, at 6:49 PM, GARDI Annalisa Post Doctorant wrote:

> Dear Geoqus members,
> I'm working on a very simplified 2D vertical section across the alps, 
> but I
> have some problems with gravity and isostasy.
> Please, could someone of you explain me how to easily account for 
> isostatic
> rebound with abaqus?
>
> Thanking you in advance,
>
> annalisa
>
>
>
> ____________________________
> Annalisa Gardi
> Institut de Radioprotection et Sûreté Nucléaire
> IRSN/DEI/SARG/BERSSIN
> BP 17
> 92262 Fontenay-aux-Roses Cedex
> France
>
> +33.1.58.35.82.57
> annalisa.gardi at irsn.fr
>
> _______________________________________________
> Geoqus mailing list
> Geoqus at lists.ruhr-uni-bochum.de
> http://lists.ruhr-uni-bochum.de/mailman/listinfo/geoqus
>