Undefined or ambiguous IPhys dispatch for types FrictMat and CpmMat

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 <email address hidden>:

> 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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Hi Jan,

Thanks for your reply.
I tried the second option, and appears this error:

 " None of given Law2 functors can handle interaction #42655+23671, types geom:ScGeom=1 and phys:FrictPhys=3 (LawDispatcher::getFunctor2D returned empty functor)"

I changed the color of the ids (to dark blue), and correspond a vertex of a box (hammer) and a sphere of concrete, as can see in [1]. I should add some Law2 more?

InsertionSortCollider(
  [Bo1_Sphere_Aabb(aabbEnlargeFactor=intRadius,label='is2aabb'),
   Bo1_Facet_Aabb(),
   Bo1_Box_Aabb(),
   Bo1_Wall_Aabb()]),
 ## Interactions
 InteractionLoop(
  [Ig2_Sphere_Sphere_ScGeom(interactionDetectionFactor=intRadius,label='ss2sc'),
   Ig2_Facet_Sphere_ScGeom(),
   Ig2_Wall_Sphere_ScGeom(),
   Ig2_Box_Sphere_ScGeom()],

  ## use Ip2_FrictMat_CpmMat_FrictPhys [1] in addition to Ip2_CpmMat_CpmMat_CpmPhys

  [Ip2_CpmMat_CpmMat_CpmPhys(),Ip2_FrictMat_CpmMat_FrictPhys()],
  ## Constitutive law
  [Law2_ScGeom_CpmPhys_Cpm()],
    ...
]

Cheers,
Laura

[1] https://drive.google.com/file/d/0B6azPyaq-2oNX3Zaa3oyZnJsOFE/view?usp=sharing

Thanks Jan Stránský, that solved my question.