geometric imperfections
geometric imperfections
(OP)
I want to do a post buckling analysis with riks method. first I did a linear buckling analysis and now i want to write the results to a result file as a nodal data to do the geometric imperfections for riks analysis. does anybody know how I should do that?





RE: geometric imperfections
Brian
www.espcomposites.com
RE: geometric imperfections
There is a good example of this type of analysis in the ABAQUS docs - "Buckling of an imperfection-sensitive cylindrical shell"
Regards
Martin
Martin Stokes CEng MIMechE
RE: geometric imperfections
RE: geometric imperfections
Regards
Martin
Martin
RE: geometric imperfections
*NODE FILE, GLOBAL=YES, MODE=1, LAST MODE=1
^
SyntaxError: invalid syntax
>>>
Is it something wrong with using * ?
RE: geometric imperfections
You did request displacements on the second line as follows?
*NODE FILE
U
Other than that, check to make sure you placed it at the end of the deck (input file).
Brian
www.espcomposites.com
RE: geometric imperfections
RE: geometric imperfections
Martin
RE: geometric imperfections
I added this one to the input file. nothing happened. I submitted the job again but the input file was rewritten. then I decided aybe I can import the edited input file as a model but this time I faced this error:
WARNING: The following keywords/parameters are not yet supported by the input file reader:
---------------------------------------------------------------------------------
*NODEFILE
*PREPRINT
RE: geometric imperfections
Open the ABAQUS command window in your working directory, then type;
abaqus j=myjobname
to run the job.
Martin
RE: geometric imperfections
and then in abaqus command prompt I ran the new input file. then I imported it to abaqus for analysis. but imperfection didn't affect the results!!
Regards
RE: geometric imperfections
You gave me vary good clues. Problem is solved now. thank you
All the best