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Re: [Question #690742]: How does the interaction.erase function work in the agglomerate examples?

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Wang Yu <question690742@xxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 16 May 2020 12:45:50 -0000
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Question #690742 on Yade changed:
https://answers.launchpad.net/yade/+question/690742

    Status: Answered => Open

Wang Yu is still having a problem:
Thanks a lot Jan!

Maybe I have some misunderstanding with O.interactions.erase. If
deleting existing interaction has no particular effect on future
interactions,so what's the purpose of this function?

I found that partcles within an agglomerate are bonded tightly (their
interaction may have some "cohesive" property). If the new
interactions(partcles between different agglomerates) are created
according to the same functors(Ig2, Ip2 and Law2 for CpmMat spheres),
why aren't there the same cohesive properties (there are no bond between
partcles from two agglomerates)?

According to my guess(may be wrong),O.interactions.erase break the
interaction for a moment, and the bond part of interaction (like
cohesive) can not be rebuilt because of the special property of CpmMat.
Am I right?

In fact, I want to creat some agglomerates:
A-type-interaction between partcles within an agglomerate is different from B-type-interaction between agglomerates. Is there  any example or advise for my question?

Thanks
Wang

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