[CIG-SHORT] Import Abaqus

[Brad Aagaard]

Birendra,

I don't have any experience importing Abaqus info into CUBIT, so I don't 
know if I can be of much help. CUBIT may recognize info in the Abaqus 
file and interpret them as blocks. You may need to do some cleanup 
before creating the blocks and nodeset that PyLith expects.

Before you start creating blocks/nodesets from groups, look through the 
tree view to see if CUBIT has already created FEA Blocks or Node Sets. 
If it has and they are okay, then keep them, otherwise delete them. You 
may also need to look and see if CUBIT added stuff to the CFD and 
Materials portions. PyLith doesn't use any info from these, so they can 
be deleted.

I would also double-check the groups (Right click on the name and then 
select Draw) to make sure they are consistent with what you want for PyLith.

Brad


On 03/07/2012 08:57 AM, Birendra jha wrote:
> Dear CIG-SHORT,
>
> I am trying to import an Abaqus *.inp file for analysis in PyLith.
> This file defines node coord, element connectivity, nodesets, element
> sets, materials (denisty variation with depth, constant Young's mod
> and Poisson' ratio), boundary condition (on lateral nodeset and
> bottom nodeset), and initial condition (void ratio).
>
> What is a good way to go about this? I loaded the abaqus file into
> Cubit and I can export *.exo file from there which contains basic
> grid info (coord, connectivity, nodesets) but I am having a hard time
> with material regions. When I import abaqus file into cubit it gives
> warning
>
> WARNING: Can not assign material for block EL_R001...block does not
> exist.
>
> for all the regions except the last one which is read fine, a block
> is created in its name with correct material properties assigned to
> it.
>
> Note the mesh shows up fine on cubit display. Its tree shows all my
> Groups, Materials, BCs and 1 volume. It is missing the block or
> region info. How can I create the missing blocks in cubit? I tried to
> create from individual group:
>> block 2 group 56
> WARNING: Some elements not added because they are already in other
> blocks. Added Group 56 to Block 2 ERROR: Attempted to create empty
> block; removing block 2
>
> I need the blocks so that I can assign material ids and then assign
> depth and region varying density to different regions.
>
> I will contact cubit about this, but just thought I will give it a
> try at cig-short first.
>
> Thanks and regards Birendra
>