the constraint to quadUP

weide361 · Post by **weide361** » Fri May 15, 2009 10:59 am

when I use the fix command to restrain a dof of the node,I can still get a nonzero displacement to the dof,is anything wrong with this?
I think it should be 0.

Post by **fmk** » Mon May 18, 2009 9:19 am

you should only get a non-zero displacement if you are using the Penalty method to enforce the constraints.

if you get a non-zero with other constraint handlers you need to ensure that the node is not slaved to another in that dirn.