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Finite rotation of tube-in-tube contact elements

Finite rotation of tube-in-tube contact elements

Finite rotation of tube-in-tube contact elements

(OP)
Hi,
I am modeling a tube-in-tube contact situation using beam elements, ITT elements and a slide line, similar to what is done in this document: http://www.lhe.no/download/Abaqus_Tube-to-Tube_mod...

Unfortunately, this combination of elements does not seem to permit finite rotations of the slide line, as all simulations break down after about 45° of rotation. A small example (based on the Abaqus verification example of ITT21) is attached. Could anyone share any experience with this or confirm that the formulation cannot handle rotations?

BR,
Karl

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