yade-users team mailing list archive

[平洋 <pingyang.1019@xxxxxxx>]

Thank you teacher!
     Can you tell me how to apply force for particles? What command stream or programming do we need?
At 2013-07-31 08:43:39,"平洋" <pingyang.1019@xxxxxxx> wrote:
>Thank you very much ! 
>    In reality, the concrete in the mineral particles initially not in contact;  mineral particles contact after the cement occur  the destruction.  I want to simulate it.
>At 2013-07-30 13:41:32,"Jan Stránský" <question233232@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>Question #233232 on Yade changed:
>>https://answers.launchpad.net/yade/+question/233232
>>
>>    Status: Open => Answered
>>
>>Jan Stránský proposed the following answer:
>>Hello,
>>
>>the very basic idea of DEM is that forces between particles are computed
>>according to their overlap, i.e. when they are touching. So an idea for
>>your case:
>>- particles, that do not touch initially is not a problem
>>- use aabbEnlargeFactor>1 of Bo1 functor and interactionDetectionFactor>1
>>of Ig2 functor (the same value for both cases, see [1]) to detect and
>>create interactions even if particles are not in contact. Then the force is
>>applied on particles even if they do not touch and when they touch, the
>>force has certain value depending on you enlargeFactors value, particle
>>size, stiffness and contact law used.
>>
>>I am not sure if this is what you are looking for, in this kind of
>>questions it is always good to explain also why you want to do such things
>>(some example what you want to simulate for example).
>>cheers
>>Jan
>>
>>[1] https://yade-dem.org/doc/user.html#creating-interactions
>>
>>
>>
>>2013/7/30 pingyang.1019@xxxxxxx <question233232@xxxxxxxxxxxxxxxxxxxxx>
>>
>>> New question #233232 on Yade:
>>> https://answers.launchpad.net/yade/+question/233232
>>>
>>> Hello !
>>>     I  want to simulation Initially particles do not touch and then
>>>  particles touch when the force between the particles reaches a certain
>>> value. I do not know how to do it .
>>>
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>>
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