ABAQUS Kinematic Coupling 1

[Entherm]

Hello,
I have been trying to connect beam(wire) to the surface of a solid element. I used a kinematic coupling with the tip of the beam as master and the surface of solid as a slave, and it seems to be working fine in the linear range. But if I input non-linear material properties to the beam, after the linear range, kinematic coupling does not seem to give expected results. Is there something that we should be careful about kinematic coupling in a non-linear range?

 

[FEA way]

The behavior of kinematic coupling constraint in geometrically nonlinear analyses is described in the last paragraph of the documentation chapter "Kinematic coupling constraints". Try with the rigid body constraint, maybe it will give you better results.

 

[Entherm]

Thank You for the reply.
I am trying to constrain only axial motion between two wire beams which are parallel to each other. If the beams were positioned horizontally, I think I could select U1 from the kinematic coupling dialog box. But the beams are at 45 degrees to the X-axis. I tried defining a local coordinate system but, apparently, it is not working with non-linear simulation