TAGGED: dynain
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February 17, 2023 at 10:44 am
Ben_Ben
SubscriberI am currently having a workflow issue. I have simplified it down so it is easier to explain.
I have to do a simulation geometry A and geometry B. Geometry A is fixed at the sides and Geometry B is inflated with pressure. Frictionless contact is applied between A and B.Â
Geometery A is comprised of three shell bodies of differing material properties. But they shared topology and have a coincident mesh. Geometry A is the picture below.
Geometry B is comprised of 1 shell body. Geometry B is the result of previous complex simulations. Geometry B is included into the model with Dynain. Geometry B is the image below.
The issue arises here. I can't combine a Dynain geometry (geom B) with a geometry from spaceclaim (geom A). To get around this I performed a small relevant part of the simulation on Geom A so that I could access it as a Dynain file. I then combined the two Dynain files from Geom A and B.Â
The next issue arises here. When you access geometry via Dynain any bodies that share coincident nodes are combined into one body. So for geom A, I lose the three individual parts and they are combined into one. This means I can't then apply differing material properties to the parts. See the result of accessing geom A from Dynain below.Â
Questions:
- Can I combine Geom A and Geom B in a different way?Â- Is there anyway to maintain the individual bodies from Geom A after dynain?
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February 20, 2023 at 7:57 pm
Reno Genest
Ansys EmployeeHello Ben,
You can create geometry A using a Mechanical Model system, import the dynain (geometry B) using an External Model system, and combine them together in an LS-DYNA system:
Note that you will have to rename the dynain file to dynain.k to be able to import it using the External Model system.
Have you tried the above? I am using Ansys WB 2023R1 and the above workflow works.
Also, make sure to set the mesh preference to "Explicit" in the Mechanical Model system:
Â
Let me know how it goes.
Â
Reno.
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February 22, 2023 at 12:03 pm
Ben_Ben
SubscriberHi Reno,Â
Just updated my model and it ran to completion. Thank you so much for this suggestion!
Kind Regards,ÂBen
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February 22, 2023 at 4:22 pm
Reno Genest
Ansys EmployeeHello Ben,
Sounds good. I am glad it worked for you.
Have a good day!
Â
Reno.
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- The topic ‘Workflow for combining two geometry. 1 from Previous Sims, 1 from Spaceclaim.’ is closed to new replies.
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