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[Jan Stránský <question257902@xxxxxxxxxxxxxxxxxxxxx>]

Question #257902 on Yade changed:
https://answers.launchpad.net/yade/+question/257902

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hi Laura,

the problem is that you have FrictMat and CpmMat, but no Ip2 functor to
deal with them. You have to options:
1) use CpmMat for all bodies
2) use Ip2_FrictMat_CpmMat_FrictPhys [1] in addition
to Ip2_CpmMat_CpmMat_CpmPhys

ad 2:
O.engines = [
  ...
  InteractionLoop(
    ...
    [Ip2_CpmMat_CpmMat_CpmPhys(), Ip2_FrictMat_CpmMat_FrictPhys()]
    ...
  ...
]

cheers
Jan

[1]
https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.Ip2_FrictMat_CpmMat_FrictPhys



2014-11-19 16:56 GMT+01:00 rayolau <question257902@xxxxxxxxxxxxxxxxxxxxx>:

> New question #257902 on Yade:
> https://answers.launchpad.net/yade/+question/257902
>
> Hi all!
>
> I try to simulate the damage in a concrete slab produced for a hammer
> shock. The script work well, but for little running time, this error
> appears:
>
> "terminate called after throwing an instance of 'std::runtime_error'
> what():  Undefined or ambiguous IPhys dispatch for types FrictMat and
> CpmMat"
>
> I looked for this error in the forum [1][2][3], and I know that my problem
> is in O.engines. I have 2 materials, concrete and steel, and three types of
> bodies: spheres (for the slab concrete), wall (to soil) utils.wall and box
> (for the hammer head) utils.facetBox.
>
> As can see in the script [4], the concrete slab is imported like
> slab.yade[5], but before, I defined the O.material == concrete. In the
> engines, I have taken into FrictMat and CpmMat and if is Sphere, Wall or
> Facet, but I know that the problem is here. Any idea? Maybe, after import
> the slab.yade, should be put something like "for i in range(0,len
> (O.bodies)): ... and then define the concrete material for spheres?
>
> Thanks in advance!
> Laura.
>
>
> [1] https://answers.launchpad.net/yade/+question/254316
> [2] https://answers.launchpad.net/yade/+question/254315
> [3] https://answers.launchpad.net/yade/+question/248700
>
> script
> [4]
> https://drive.google.com/file/d/0B6azPyaq-2oNNlBxZmV4aldjWGs/view?usp=sharing
>
> slab.yade
> [5]
> https://drive.google.com/file/d/0B6azPyaq-2oNMGVIeE85U0lzZU0/view?usp=sharing
>
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