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Need help: Obtaining results from loadcase steps

Need help: Obtaining results from loadcase steps

Need help: Obtaining results from loadcase steps

(OP)
Hello everyone,

I got the following issue with Abaqus:
I have got a Static Linear Pertubation Step with a lot of loadcases and a quite big model. I need to determine the displacement of a lot of nodes for each loadcase. This should be as fast as possbile and as robust as possible, since I have to give away the tool to other colleagues.

1. My first approach was to use the python scripting interface to get all results out of the .odb-file. It works but takes very much time. And furthermore, I don't want much that my colleagues are able to manipulate the script. The python script is therefore not very useful.

2. The second approach was to use the C++ interface of abaqus to access the .odb-file and get the data. That works and is also a little bit faster. But it took me a hell of time to get the script compiled and it is not a kind of easy to handle, since we are not that experienced with C++.

3. My third thought was to write out the result to a .fil file and use Fortran to read it. We have a lot of experience with Fortran inhouse and we want also to proceed with the result data in Fortran. So, I could combine further process with obtaining the results. Unfortunately Abaqus tells me, that I can not use the *FILE NODE command with a Loadcase-Step. So, it does not create a .fil-file at all.

4. The fourth idea was to use the .dat-file and use *PRINT NODE during the solving process. Unfortunately the numerical results are not in a sufficient precision in the .dat-file so that I can not use it.

I heard of implementing Fortran scripts to the solver, so that writes result data to a user defined file and format during the solving process. This sounds interesting, but I firstly don't know how and if it could work and secondly if it is robust to version changes.

Does anyone have a clue how to solve this issue by a quickest and most robust process?

RE: Need help: Obtaining results from loadcase steps

(OP)
Nobody here, who is expert in this this topic?

RE: Need help: Obtaining results from loadcase steps

Cranisch,

Use *NODE FILE not *FILE NODE !!

Then you will have a .fil file created from which you can read the results using fortran. If you don't want the format to be the default binary use *FILE FORMAT, ASCII

www.Roshaz.com quality, cost effective FEA solutions

RE: Need help: Obtaining results from loadcase steps

(OP)
It's right, it was missspelled here.
But either way, *NODE FILE does not work with loadcase steps since it is not allowed with this kind of step definitions. therefore, unfortunately i can not use it.

so i still have got the problem.

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