Kinematic Coupling ABAQUS

[Entherm]

In ABAQUS, if we apply kinematic coupling between two nodes, say node 1 is master and node 2 is a slave, and constrain U2 and U3, shouldn't U2 for node 1 = U2 for node 2 and U3 for node 1 = U3 for node 2 be true?

 

[Mustaine3]

No. Imagine what happens when one node rotates.

 

[Entherm]

@Mustaine3, thank you for the reply.
So what about if I constrain everything besides U1; shouldn't U2, U3, UR1, UR2, UR3 be the same for both nodes A and B?

 

[FEA way]

If you want to achieve such effect, try with equation constraint instead of coupling.

 

[Entherm]

What I am trying to do is constrain two nodes but also make sure there is no axial force transfer between those. WHat do you suggest?

 

[Mustaine3]

If you want to constrain everything beside the axial movement and want this direction to be updated during the simulation, then you should look at a connector type TRANSLATOR. The documentation gives you more details.