out normal vector of the master plane

[alimohammadian]

I want to use Node-to-node frictional contact element. the following link:
http://opensees.berkeley.edu/wiki/index ... ct_Element



element zeroLengthContact2D $eleTag $sNode $mNode $Kn $Kt $mu -normal $Nx $Ny
but I donnot know how define the following parameter:
$Nx, $Ny The out normal vector of the master plane (2D)

Can anyone give an example?

[rafetsisman]

Dear alimohammadian,

The only example you can find is here;

http://opensees.berkeley.edu/community/ ... php?t=5266

Rafet