Yade

Is this program suitable for a problem of impact of rigid rock against elastis-plastic wall with hardening?

Asked by Rimma Lapovok

I am looking for a software suitable for modeling the erosion wear (plastic deformation) of the steel plate heating the rigid non-spherical rock. I'm new in the field and not sure if any software in DEM field are suitable.

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Jan Stránský (honzik) said : 		#1

Hello,

I would say the main question is if DEM is suitable for this kind problem. The specific software comes afterwards. Do you know if somebody else have already used DEM for your problem?

To get better answer, please tell us more about your problem (some figure, expected results, typical dimensions, velocities, times...). Is heat transfer involved in your problem (seeing "heating" in your question)?

From the description I don't think Yade and DEM in general is the right direction. Probably a FEM code that supports contact elements would be a better choice.

cheers
Jan

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Bruno Chareyre (bruno-chareyre) said : 		#2

>'seeing "heating" in your question'

Or maybe it was just "hitting"?
Still, elasto-plasticity with hardening as in textbooks is not something you introduce in DEM in a straightforward manner.
I also found FEM better suited for just two interacting objects.
Bruno

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Bruno Chareyre (bruno-chareyre) said : 		#3

Wait a minute... sorry for prev. message. The question reads: "erosion wear (plastic deformation) ".
Are you 100% sure that elastoplasticity is really the correct physical description of erosion wear?
This is really deciding if DEM is good or not. For some tribology problems DEM is used, for pure elastoplasticity I would not push it.
Bruno

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