[CIG-LONG] "strainWeakening" component in Gale
Walter Landry
walter at geodynamics.org
Thu Mar 8 11:59:51 PST 2012
feng lin <rimbong at gmail.com> wrote:
> Hi everyone,
>
> I don't understand the "strainWeakening" component in the Gale.
> I think the point at which the material starts to yield is calculated by VonMesis or
> DruckerPrager yielding criteria in "yielding" component.
> Then I couldn't understand what the "strainWeakening" component is used for.
strainWeakening changes the VonMises and DruckerPrager parameters.
That is why VonMises has ”cohesion” and ”cohesionAfterSoftening”.
> I got more confused when I read that:
> initialSofteningStrain The strain at which the material starts to yield.
> finalSofteningStrain The strain at which the material has fully yielded.
> from the Gale manual.
The initialSofteningStrain and finalSofteningStrain affect when the
modification of the VonMises/DruckerPrager parameters starts and finishes.
Cheers,
Walter Landry
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