[Other] Mesh import in Autodyn HELP!

valahian1 · February 23, 2012, 04:11

Hello!

Can anyone help me with this:
I made a geometry in AutoCAD, imported it in FE Modeler as .stl, exported as .nas (Nastran) and imported in Autodyn. I must apply to this geometry a concrete material and also I must import a .fil file regarding to simulate a blast in a cavity. I done the .fil file, but I don't know to combine these two parts. Can someone tell me how to do this?
Also I have an option to import the geometry in Autodyn as unstructured mesh from ICEM CFD (k file or exp).
Thanks a lot!

valahian1 · February 24, 2012, 15:31

I imported the mesh file from ICEM as k file, and this gave me 3 parts: 1 beam, 1 shell and 1 volume. I assigned to each of these parts a Rigid material with 2.5 mg/cm3 and then a Linear material via Initial Condition.
The blast is a TNT blast made following Urban blast tutorial. For this I made an Out Flow boundary, an Ideal gas part (air) and fill this part with TNT (like in the tutorial).
My explosion pass through walls and I really don't know what to do.

I looked all over the net, but I can't find any answer.
So if here is anyone that can help me, please do!
Thanks!

bence · February 29, 2012, 12:37

Make sure that you have Euler Lagrange Interaction turned on.

valahian1 · March 8, 2012, 03:16

Thanks for your answer Bence, I'm working on it but I don't know the right settings. I'm testing now.

February 23, 2012, 04:11	Mesh import in Autodyn HELP!	#1
valahian1 Member Nick Join Date: Feb 2012 Posts: 33 Rep Power: 14	Hello! Can anyone help me with this: I made a geometry in AutoCAD, imported it in FE Modeler as .stl, exported as .nas (Nastran) and imported in Autodyn. I must apply to this geometry a concrete material and also I must import a .fil file regarding to simulate a blast in a cavity. I done the .fil file, but I don't know to combine these two parts. Can someone tell me how to do this? Also I have an option to import the geometry in Autodyn as unstructured mesh from ICEM CFD (k file or exp). Thanks a lot!

February 29, 2012, 12:37	Blast passing through wall	#3
bence New Member Bence Gerber Join Date: Feb 2012 Posts: 1 Rep Power: 0	Make sure that you have Euler Lagrange Interaction turned on.

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March 8, 2012, 03:16		#4
valahian1 Member Nick Join Date: Feb 2012 Posts: 33 Rep Power: 14	Thanks for your answer Bence, I'm working on it but I don't know the right settings. I'm testing now.