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Recent content by Hich

  1. Hich

    Decreasing mesh size gives strange results in buckling analysis

    Thank you Tara. Your answer helped a lot and it seams that when I make the mesh size too coarse local buckling contributes to the results. Regards
  2. Hich

    Decreasing mesh size gives strange results in buckling analysis

    Dear all, I am performing a buckling analysis on a I beam section under uniform moment. I use S4R element. as i decrease the mesh size sometimes I get very strange results that I don't know if they are real buckling modes or not. Does anybody have any idea about that? Regards
  3. Hich

    Monitor the Job in ABAQUS Command Prompt

    Should I write tail-f Myfile.sta in qbaqus command prompt. It didn't work
  4. Hich

    Monitor the Job in ABAQUS Command Prompt

    Dear All, When I run an ABAQUS job from ABAQUS command prompt I need do monitor the job as well. Does anybody know a command for that and how can I stop(kill) the analysis in through command prompt when I need Regards
  5. Hich

    geometric imperfections

    Dear Martin, You gave me vary good clues. Problem is solved now. thank you All the best
  6. Hich

    Imperfection Command

    Problem is solved Thanks
  7. Hich

    Imperfection Command

    Dear Friends When I write add the imperfection command to the input file *imperfection, file=myfile 1,1 and I run the analysis in the Abaqus command prompt, it seems that the analysis doesn't continue while without adding the imperfection command to the input file everything was alright. Does...
  8. Hich

    geometric imperfections

    I don't know how to thank you Martin. I finally made the .fil output. then I made my model for Riks analysis and I opened its input file with notepad and I added *imperfection, file=mylastfile and then in abaqus command prompt I ran the new input file. then I imported it to abaqus for analysis...
  9. Hich

    geometric imperfections

    thank You Martin 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...
  10. Hich

    geometric imperfections

    I think my first problem is that i don;t know where I have to write these commands. I use the command area which is at the same place of message area. is it correct?
  11. Hich

    geometric imperfections

    I used the following command but Aabaqus gives error with the *. *NODE FILE, GLOBAL=YES, MODE=1, LAST MODE=1 ^ SyntaxError: invalid syntax >>> Is it something wrong with using * ?
  12. Hich

    geometric imperfections

    How can I request output to a .file ? I am really in trouble
  13. Hich

    Riks Analysis and Material Nonlinearity

    Hi all, I have done a Riks analysis to investigate the material nonlinearity on buckling moment. but when I add plastic characteristics nothing changes. does anybody know why?
  14. Hich

    Material Nonlinearity in Abaqus

    Dear Mates, I have performed a Riks analysis to work out the influence of material plasticity on buckling moment. to make sure that the section yields before buckling moment reaches I used short spans. But the results are the same for both elastic and plastic materials.Does any body know what...
  15. Hich

    Buckling Moment from Riks

    Thanks mate. I think the problem is that. i did not used any imperfection at all. I will try it

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