A converge problem when using connector and pre-tention section in ABAQUS

[diddz]

I build a ABAQUS model using a connector attaches beam elements. I set-up a pre-tention section a beam element to apply a assembly load. when I using prescribed displacement to apply assembly load the model is OK. after I try to apply assembly load using CLOAD, the model can not converge. I can't understand why.

 

[Mustaine3]

'hard to say with just the description. Maybe a BC is missing, so the force creates a rigid body motion.

Upload the .cae or .inp if you can't solve the problem.