Lagrangian Surface is Empty Error Message in Hypercrash

Altair Forum User

Hello,

 

I've been trying to run a fairly basic simulation in HyperCrash using the Radioss solver, however I keep getting an error that shows as:

 

ERROR ID :          119
** ERROR IN INTERFACE 22 DEFINITION
DESCRIPTION :  
   -- INTERFACE ID : 1
   -- INTERFACE TITLE : New INTER 1
   LAGRANGIAN SURFACE IS EMPTY

 

Additionally, there are a few warnings that show, however I've worked through them before and am less concerned by them. The real problem is the Lagrangian Surface error. I'm fairly certain it's related to the contact surface, however I'm not sure what the problem is. Any ideas on how to fix it, and what the error is related to?

 

Any help is much appreciated, and the .OUT file is attached if it provides any additional insight.

Unable to find an attachment - read this blog

Altair Forum User

Hi Taylor,

This error means that the contact setting specifies an item that does not exist or specifies an invalid item. As an example, / SURF / PART is valid if you do a shell part, but you can not use it for a solid part, you need to clearly specify the outer surface in the form of / SURF / PART / EXT. Also, even if a part is specified, if there are no elements in it, an error will still occur.

Please check the interface defined in the model. Also, recommend you to run the model checker, so that all possible modelling errors will be listed.

Altair Forum User

Altair Forum User said:

George,

 

I appreciate the help. As it turned out, when the CAD model was exported from Solid Edge it changed the model from a surface to a solid, which created the issue you described. Thanks again.

 

Altair Forum User

Could anyone help me to find the solution for the error:lagrangian surface is empty