Re: Abaqus sensitvity for force calculation in compression test

Hi  Mr. Baeker

Yes you are right.

What I am talking is about the reaction forces after plasticity has
started. For sure, in the elastic limits the forces will be the same.

Thanks,
Aditya.

Best regards



Aditya Vuppala



Fax: +49 241 80-92234

[email protected]

www.ibf.rwth-aachen.de


On Fri, Sep 28, 2018 at 12:51 PM Martin Baeker [email protected]
[Abaqus] <[email protected]> wrote:

>
>
> so you specified a different youngs modulus? The yield curve only
> becomes relevant after the initial yield stress is reached, before
> that material is linearly elastic.
>
> > Dear all,
> >
> >
> > I am trying to simulate a very simple compression test in
> abaqus/standard with axisymmetric symmetry.
> >
> >
> > Not the probolem I have is, the force calculation is not sensitvie to
> the yield curve I give. For example, I give a linearly increasing yield
> curve with slope of 100, and then I give a yield curve with slope of 100.1
> I get the same force in the first few increments during the calculation. I
> tried using double precision and also fully integrated elements.
> >
> >
> > Could I do anything else to make abaqus sensitive for small changes in
> yield curve?
> >
> >
> > Thanks,
> > Aditya.
> >
>
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