Hello,
I started last week to work with Abaqus2Matlab and it is a really great tool. However, I want to analyse my SDVs which I defined in a UEL subroutine with this tool now. Is this possible with Abaqus2Matlab because until now I do not found a way to do this?
It would be great if some could tell if it is possible and when it is possible what I have to do. And when it is not possible will it be possible in the future?
Thanks in advance and kind regards,
Joachim Nordmann
Good morning Joachim,
I am very glad that you solved your problem. Your remark will be taken into account in the next release of Abaqus2Matlab.
Best and thanks for your comments,
George
Good morning George,
I do know now what is the problem. I extrapolate the calculated stresses to the nodes by using the command:
*El File, Elset=..., Position=Nodes
I do this because later I integrate these stresses along a specific node path. Maybe it would be better to change the description of row number #n# in the rec11.m file.
Kind regards and thanks for your fast reply,
Joachim
Hello Joachim,
Have you checked the number of steps of your analysis? If the steps are more than one, then the number of rows will be larger than the product [elements] x [integration points] x [section points] x [increments].
Best,
George
Hello George,
I have a question again. But now it concerns the rec11.m file to extract stresses from the fil-file. I extract stresses from the element CPE8R which is a 8 node plane strain element with reduced integration, thus, I have 4 integration points. My problem is that I do not understand how the number of rows of the output file is calculated. According to the discription of rec11.m it is number of elements multiplied by number of integration points multiplied by number of section points multiplied by number of increments. When I use one CPE8R element this should lead to 1*4*1*107=428 rows for the output file. But I get 1*4*2*107=856 rows when I use the rec11.m file which makes me wondering.
Could you explain this to me a little more in detail please.
Kind regards,
Joachim
Hello George,
thank you for your fast replay and sending me the Rec5.m file. I tested it and I am able to process the SDVs with Matlab now. Hence, I can start with my optimisation procedure now. Thank you.
Best regards,
Joachim
Hello Joachim,
Thank you for your good comments about Abaqus2Matlab. What you want to do is possible with Abaqus2Matlab.
You can specify:
*FILE FORMAT, ASCII
*EL FILE
SDV
within the step definition of your input file and then run it in Abaqus. After the analysis completes, a results file (*.fil) will be created which will contain results about the SDVs. In order to load the SDV results in Matlab, you will need Abaqus2Matlab v.1.0 and the function Rec5.m (which is not included in the first version of Abaqus2Matlab).
I can send you this function by email if you want. Please send me a pm to send you the file.
Best,
George