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Re: [Question #701259]: Create packing with given void ratio at different isotropic pressures

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jan Stránský <question701259@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 14 Apr 2022 09:41:09 -0000
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Question #701259 on Yade changed:
https://answers.launchpad.net/yade/+question/701259

Jan Stránský posted a new comment:
> After this point, if the packing is regular and the loading is
isotropic, the void ratio should stay constant because the configuration
of the spheres cannot change (if pressure is reasonable).

again, it depends on the definition of "constant", "cannot change" etc.
Because with increasing pressure and decreasing overall volume decreasing the void ration is NOT constant and the spheres DO change (although the effect may by negligible).

> ... method 1 works and I think that by using O.interactions.clear() ,
the new forces in the following loop are calculated correctly

yes, after O.interactions.clear() new interactions are created. New
interactions are based on current materials.

Cheers
Jan

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