Hi,

I'm modeling a lattice structure and I would like to insert the contact elements between 3D beams to get the whole structure non linear deformation. Since I never used contact elements before I tried to simulate a simpler analysis with just two 3D beams using conta176 e targe170. The solution is done but there seems to be no deformation as if contact never happened. It seems that the two beams doesn't see each other. To create the contact element I use these command:

r,2

et,3,targe170

nsel,s,loc,y,0

type,3

real,2

tshap,line

esurf

allsel

et,2,conta176

nsel,s,loc,y,10

type,2

real,2

esurf,,top

You can find attached the whole script I'm using. Can anyone explain me what is going on and help me?