Disable the broken bond and element in PlugIn "ConvertElementPairToBeam"

[LE Ba Danh]

Hi Damien et all,
How to disable the broken bond and broken element in PlugIn "ConvertElementPairToBeam"?
The "MaxStress" uses in this Plugin is microscopic or macroscopic?
Thank you,
Danh

[Damien André]

Hello Danh,

LE Ba Danh wrote

The "MaxStress" uses in this Plugin is microscopic or macroscopic?

Yes this the microscopic one

LE Ba Danh wrote

How to disable the broken bond and broken element in PlugIn "ConvertElementPairToBeam"?

Yes this is already done, you can see the disable bonds with the gddviewer  "Bond > IsDisabled?"

[LE Ba Danh]

Thank Damien,
- I see in gddviewer the broken bond when I use "MaxStress" in "ConvertElementPairToBeam" and BuildElementPair="Yes" in "ApplyBondLoad":
 <PlugIn Id="_ConvertElementPairToBeam" MacroYoungModulus="72e9" MacroPoissonRatio="0.2" MaxStress="6e7"/> 
 <PlugIn Id="_ApplyBondLoad" BuildElementPair="Yes"/>.

- But when I use the PlugIn "_ComputeVirialStress":
  <PlugIn Id="_ComputeVirialStress" FailureMode="BRITTLE" ApplyCriterionOnSet="Cylinder" NeighbourLevel="1" ApplyCriterionOn="ALL" CriterionLaw="s1>C1" CriterionVar="C1=3e6"/>        
The broken bond is deleted automatically. How to disable these broken bonds?
Thank you,
Danh
   

[Damien André]

Hello,
You can use the "AddElementToCrackSet" option as follows :

 

<PlugIn Id="_ComputeVirialStress" FailureMode="BRITTLE" ApplyCriterionOnSet="Cylinder" NeighbourLevel="1" ApplyCriterionOn="ALL" CriterionLaw="s1>C1" CriterionVar="C1=3e6" AddElementToCrackSet="Yes"/>         

It removes all the broken but this option allows to create a special SetOf "Core::Pair<DEM::Bond>" named cracks (or something like) where all the broken bond are placed.

Kind regards, Damien.

[LE Ba Danh]

Thank Damien,
With AddElementToCrackSet="Yes", new SetOf named "cracks" has been created in DEM::Element, not in DEM::Bond.
How to create the same SetOf in DEM::Bond?


A+
Danh

[Damien André]

Hello, you should have something similar in Core::Pair<DEM::Element>

[LE Ba Danh]

Thank Damien,
So, if I want have this SetOf in DEM:Bond with the broken bonds.
How can I do in Plugin ComputeVirialStress?
Danh

[Damien André]

Hello, please update your granoo distrib with 'svn update'.

With this new version, you can add an option 'DeleteBrokenBond'. You should pass it to False. It gives :

<PlugIn Id="_ComputeVirialStress" NeighbourLevel="1"  MaxPrincipalCriterion="65e6" 
        ApplyCriterionOn="CLOSEST"  DeleteBrokenBond="False"/>

I do not test this change, please tell me if it gives the expected results !

Kind regards, DA.

[LE Ba Danh]

many thank Damien,
I will test it.
Danh

[LE Ba Danh]

Hi Damien,
It does not work.


Danh

[Damien André]

Humm, it's not clear for me...

Just comment the line 205 of the GranOO/libDEM/Bond.hpp file and recompile it.