Learning Forum

[Zeel]

Hello everyone, 

I am currently working in LS Dyna (workbench version). After the simulation was sucessful, i wanted to get the deformed geometry as I need to extract the fluid domain from the Spaceclaim and use the geometry further in the fluid structure interaction. The method i am using to get the deformed geometry is shown below in the photo. From the mechanical model (B) i can export the deformed geometry (.pmdb file) OR I can direcly drag the model (B) to geometry (C) and open the geometry in design modeler. While this method seemed to work in the ansys mechanical workbench in past, for LS Dyna workbench version, it doesn't export the actual geometry, rather just one or two curves. While i tried to open the geometry in the Design modeler, it first showed me an error of the agppi license error (see the photo) even though there are enough Disco_level1 (i think as the Disco_Level1 licenses are available, design modeler should use it first), and after some trial and error, when i got the .agdb file and saved it as the part file from the design modeler, the geometry was lacking most of the solids.  

Another method i tried was to export the .stl file and reverse engineer the .stl file to the actual geometry,  but due to the complexity of the geometry, and the requirements for the fluid structure interaction, the final output after the reverse engineering is useless. So is this a bug from the LS dyna workbench version or what? Because i tried to export some other geometry from the LS dyna as well (both deformed after the simulation and undeformed before the simulation). In each case it is exporting the empty .pmdb file.

That's why i wanted to ask that is there any other method to get the deformed geometry after the simlation (not through the .stl file or the method i showed in the pic)?

Thank you very much in advance for any kind of help!

 

[igandiko]

Hello, you can use *interface_springback card to write out deformed mesh (dynain file) after the analysis. There is an old forum post on this topic implementing it in WB ls-dyna (https://innovationspace.ansys.com/forum/forums/topic/error-when-transferring-solution-to-new-model-in-the-project-schematic/).