ALE adaptive with imported model

[Bernaxxx]

hello

how can i use ALE adaptive with model imported from an INP file (orphan mesh)? it seems to not be possible

thank you all

 

[76185]

Hi,

I tried to do same thing but it seems in fact that it is not possible: you need a geometry to perform an ALE simulation.
The question is: how can we build a geometry from an orphan mesh?

Sincerely,

Doug

 

[Bernaxxx]

Hi,
I don't know... I hope somebody in here knows something about it.
I also sent some e-mails to people that should be able to at least tell me if this is even feasible.
I'll let you know as soon as I have some answers.
Hope you can keep me informed too if you get smarter.

 

[xerf]

If you have a 2D orphan mesh, you can create a geometric (native) part in CAE using the commands:

orphanPart=mdb.models["model_name"].parts["orphan_part_name"]
mdb.models["model_name"].Part2DGeomFrom2DMesh(name="name_of_the_new_part",part=orphanPart,featureAngle=)

Probably you have to play a bit with the featureAngle value.

For details see the Abaqus Scripting Reference Manual.

Best.

 

[76185]

Thanks for you replies.
You were right Xerf, it's worked well for me .

But I would like to ask an other question on this theme:

Performing an ALE, how do you fix the mesh in the space independently of the material flow ?
On the in- and outflows surfaces of my model I defined eulerian boundary surfaces whose nodes are fixed in the in- and outflow direction. It works well.

But on the rest of the part, the mesh moves with the material, causing distortion problems...I defined sliding boudary surfaces all around...but it is the same thing with lagrangian boundarys!