yade-users team mailing list archive

[Luc Sibille <luc.sibille@xxxxxxxxxxxxxx>]

For which phase have you got negative q values? The compaction phase, 
the deviatoric phase, ... ?

Hadda Nejib a écrit :
> I don’t know if it is common in YADE to have negative values for the 
> deviatoric stress q   in both triaxial test and triaxial test water for 
> the first iterations (numerical problem) until the specimen is 
> stabilized. I have also always had this sudden fall in the value of 
> sigma22 after some iterations at the beginning of my simulations.
>
> Shall I take the initial value of sigmaisocompactation near to value of 
> the confining pressure to avoid such problem ?
>
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--
Luc Sibille

Université de Nantes - Laboratoire GeM UMR CNRS

IUT de Saint Nazaire
58, rue Michel-Ange - BP 420
44606 Saint-Nazaire Cedex, France

Tel: +33 (0)2 40 17 81 78