Learning Forum

[hansenli]

Hi,

Is nodes to surface thermal contact supported in LS-DYNA. I received a warning:

*** Warning 20660 (STR+660)
     in definition of contact 1
     Contact must be surface_to_surface
     for a thermal problem. This contact
     surface will be skipped during the
     thermal calculations.

when I started the simulation. In this simulation, I was modeling the contact between tool and workpiece, where the tool is modeled using FEM, and the workpiece is modeled using SPH. 

 

Thanks!

 

[Reno Genest]

Hello hansenli,

There is the following  information in the LS-DYNA user manual vol I:

 

If you are able to use one of the supported nodes to surface contact without specifying a node sets, then maybe it could work. Otherwise, I am not sure how you can define a thermal contact between FEM and SPH.

Could you use FEM instead of SPH in this case?

 

Reno.