Question #402779 on Yade changed:
https://answers.launchpad.net/yade/+question/402779
Status: Open => Answered
Jan Stránský proposed the following answer:
Hello,
there are polyhedrons and contact between them implemented in Yade. have a
look at examples/polyhedra [1]. Also have a look at publications using this
implementation [2,3].
>From its nature, the contact detection and evaluation is more time
consuming than sphere-sphere contacts.
I am not sure if I got last part of your question, but since Yade is open
source, you can redefine or write whatever you want.
cheers
Jan
[1] https://github.com/yade/trunk/tree/master/examples/polyhedra
[2] http://www.sciencedirect.com/science/article/pii/S0032591014005191
[3] http://congress.cimne.com/particles2013/proceedings/full/p103.pdf
2016-10-05 11:27 GMT+02:00 张德 <question402...@answers.launchpad.net>:
> New question #402779 on Yade:
> https://answers.launchpad.net/yade/+question/402779
>
> Sir, I am working on a project about granulars with irregular
> shapes----ballasts which used on train track ballast bed. The shape has
> great influence on the mechanical behavior of ballast bed. So I want to
> simulate the irregular shape of ballast precisely. As common methods using
> finite number of spheres bonded up to generate irregular shape granular
> like PFC3D, but it still can't accurate describe the contact relation
> between ballasts as it still relies on the Hertz contact theory between
> ball to ball.
> So I have a question that does YADE can generate the polyhedrons instead
> of cluster of balls bonded up?
> As different from spheres, the contact detection and calculation between
> polyhedrons have to redifined. So does YADE have the contact algorithm
> between polyhedrons? or new contact algorithm could the be writen into the
> procedure of YADE(the algorithm may take the non smooth contact method)?
>
>
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