Re: Soil Contact Issue

Hello Sven,

Greetings from Brazil. I've been doing simulations with contact conditions,
and this has quickly lead me to drop Standard simulations, because of
convergence difficulties, and preferred and
Explicit formulation. Implicit simulations have many restrictions (contact,
convergence), as do Explicit simulations (correctness, cost). In any case,
your .inp file contains a few thousand elements, which might be quick if
run under explicit (don't forget to change element types). Also, even if
your actual volume spans kilometers, you might be able to escape excess
model complexity by adjusting dimensions and units.

Have a good one!
Fred

On Sat, Dec 15, 2018 at 6:05 PM [email protected] [Abaqus] <
[email protected]> wrote:

>
>
> Hi,
>
> I am currently working on a model to simulate the compaction of geological
> reservoirs during the extraction of pore water. Since the model will be a
> few kilometers long, I would like to first look at the necessary mechanisms
> in a small 2-D model (standard).
>
>
> Here I have a problem with the contact of two soil parts. Since general
> contact cannot be used with 2-D, I created a surface-surface-contact
> between the two surfaces: Small sliding; No adjustment; Friction Coeff 0.8;
> Normal Behavior (default).
>
> Unfortunately the Geostatic-Step is aborted immediately (Too many attempts
> made for this increment). I have tried in several ways to establish the
> contact, but have remained unsuccessful.
>
>
> The goal is to compress one of the two parts by a few centimeters, while
> the other part only reacts to the movement, but is not loaded directly.
>
>
> Under the following link you can find the input file:
>
> https://rwth-aachen.sciebo.de/s/3A67pzolJIOFq5c
>
>
> I'm looking forward to good advice and thank you in advance.
>
> Many greetings
>
> Sven
>
> 
>


-- 
Att,
Fred