** RUN KILLED : ENERGY ERROR LIMIT REACHED

Altair Forum User

Hey

 

I am simulating a bumper beam with radioss,

but when calculating, the time starts to increase and after a while occurs this message:

 

WARNING INTERFACE          3
 NODE    1535259 DE-ACTIVATED FROM INTERFACE

 

and then:

 

MESSAGE ID :          205

 ** RUN KILLED : ENERGY ERROR LIMIT REACHED

 

I tried to different element formulations, set inacti to 6. (there are no global penetrations)

changed the material, changed the elementlength etc.

 

How can I avoid this message?

 

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

HI,

 

What is the interface type you are using?

 

Can you increase the minimum gap in the interface?

 

Altair Forum User

I'am using Interface type 7.

My shellthickness is 2mm so I used 1mm for Minimum gap.

When I use for example 2mm

this warning occurs:

** WARNING IN INTERFACE GAP
DESCRIPTION : 
   -- INTERFACE ID : 3
   -- INTERFACE TITLE : all vs all
   MAXIMUM VARIABLE GAP=2.000000000000
   HOWEVER GAP IS RECOMMENDED TO BE LESS THAN 1.752438733029
  POSSIBLE IMPACT NUMBER:        1426  (<=           1 *NSN)

Rahul Rajan_21763

Hi,

Warning due to interface gap is because of the GAP defined in the type 7 keyword. Attached document should give you more information on this.

Regards

Rahul R

Unable to find an attachment - read this blog

Altair Forum User

I get the same error for some reason. Can you help?

 

 WARNING INTERFACE          2
 NODE          5 DE-ACTIVATED FROM INTERFACE

MESSAGE ID :          205

 ** RUN KILLED : ENERGY ERROR LIMIT REACHED

Unable to find an attachment - read this blog

Karthic_22061

Hi Ravin,

Try changing your normal direction for plate and  the rigid body thickness 10e-14 is too low.

 

Also check the material properties and velocity of impact for high energy error