[Geoqus] earth stress field

[Gabriele Morra]

Hi Tobias,
  for my experience, using abaqus python for post-processing is quite  
comfortable, while not for preprocessing. Maybe it would be easier to  
write an input file directly (also in an automatic way using a python  
script) or using abaqus CAE. If you send the script, anyway, I can  
have a look on it and see if I can help you.
Gabriele

On Jul 18, 2006, at 12:55 PM, Tobias Lau wrote:

> Dear Members,
>
> I'm quite new at Geoqus but I've already got a big bunch of  
> questions. Right now
> I'm trying to include a stress field in my model. After some test  
> with the
> "Geostatic" option I got the hint to use a python skript to extract  
> the results
> of the pure gravity stress and use that for the initial vertical  
> stress
> field. So far it works quite well.
> But now I tried to create a horizontal stress field in the same way  
> without much
> success. Mayby someone has already some experience with it and  
> could give me
> a hint. Till now I used a side Load ("pressure") normal to the  
> faces in
> combination with an expression field to get a vertical increase of the
> pressure. The only boundary condition is a fixed bottom against  
> gravity. The
> result displays a strong stress drop along the edges and no stress  
> in the
> corners. Also I got unrealistic deformations (many times the size  
> of my model
> although the elastic parameters and stress values are correct) and  
> distribution
> (instead of my expected vertical deformation increase it is one  
> parallel to the
> faces but without any vertical component).
> Thanks for any help.
> Cheers,
> Tobias
>
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