yade-users team mailing list archive

Thread
Date

Re: [Question #679566]: Some questions about simulating consolidated undrained triaxial test

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Bruno Chareyre <question679566@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 27 Mar 2019 10:08:00 -0000
Reply-to: question679566@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

Question #679566 on Yade changed:
https://answers.launchpad.net/yade/+question/679566

Bruno Chareyre posted a new comment:
> should strain rate technically depend on maintaining pore pressure
equilibrium for a consolidated undrained test?

No. In undrained tests pore pressure is a result, it is not maintained.

> In your case, the particles continue to "consolidate" (overlap)

I don't think so. If you impose a constant volume there is no
consolidation.

It is partly correct to replace fluid by a condition of shear at constant volume, in the sense that it's indeed the only effect of the fluid at the macroscale (if we admit water compressibility can be neglected... not true for rock materials).
What is missed by this approach is the internal circulations of fluid due to heterogeneities of local strain, but in terms of boundary conditions it makes sense.

-- 
You received this question notification because your team yade-users is
an answer contact for Yade.