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Abaqus explcit and anisotropic friction

Abaqus explcit and anisotropic friction

Abaqus explcit and anisotropic friction

(OP)
Hi,

So I have this model of a three-roll-pushbending process. It consists of a tube (Shell element, S4R) and the rigid Rolls and some connectors for the translation ( also damping etc...).
The rolls are not rotating in this model, so I simply wanted to assign them a friction coefficient in the direction of the axis of the tube.
Since the tube rotates around its own axis, I also need a different friction coefficient in the "Z-direction".

I'm using the explicit solver and abaqus only a allows anisotropic friction with the standard one.
So I'm looking for solutions...The easier the better ;)

1. I thought about changing the model to implicit solver. But abaqus won't let me. I don't know why, since my mesh types are all avaible of implizit as well...
Any Ideas?

2. I thought about keeping it explicit and to let the rolls rotate around a bearing. So I can assign one friction coeff. between bearing and roll and one between tube and roll.

So let me know what you think and if there is a better solution I didn't think of
Thanks!

Philipp

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