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["pingyang.1019@xxxxxxx" <question233232@xxxxxxxxxxxxxxxxxxxxx>]

Question #233232 on Yade changed:
https://answers.launchpad.net/yade/+question/233232

    Status: Answered => Open

pingyang.1019@xxxxxxx is still having a problem:
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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