Shell Contact in Optistrut 11

Altair Forum User

Good afternoon,

 

I would like to know again how to defined contact between two shells that are apart by there solid thickness,

It should respect the thickness during the contact.

Shells have T thickness defined.

 

One shell group is 30mm thick and the other is 25mm thick.

The 2 contact pairs are 27.5mm apart.

 

http://i.imgur.com/Q0dT71l.png

 

 

Where do I add the information in the cards again to tell the contact group the correct thickness of the shells.

Regards, Harry

Altair Forum User

Hello,

 

Maybe your gap is to big, since there is a build in distance for gap detection (default = twice the average edge length on the master surface).

 

Please try to set the parameter SRCHDIS in CONTACT card a little bit larger then your real gap distance.

 

SRCHDIS:

Search distance criterion for creating contact condition.  When specified, only slave nodes that are within SRCHDIS distance from master surface will have contact condition checked.

Default = twice the average edge length on the master surface. For FREEZE contact, half the average edge length. (Real > 0 or blank)

 

Regards,

Mario