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Initial imperfection

- April 30, 2020 at 12:31 am
  
  Luana
  Subscriber
  
  Dear Everybody,
  
  I use ansys workbench 19.1 and run an analysis for a truss. I applied constant force at the purlins. I also want to apply increasing thermal condition, and observe the effect of the degradation of the Yield strength and Young's modulus. I use line elements edited in spaceclaim.
  
  As the first step, I need geometric initial imperfection, thus I wanted to connect my static structural-Eigenvalue buckling solution with a new static structural analysis, (because of the lack of finite element modeler in newer versions)
  
  The analysis run without problem till the eigenvalue buckling.
  
  But I always get an error message, and can't make an operative contact between the calculations.
- April 30, 2020 at 12:56 am
  
  peteroznewman
  Subscriber
  
  In Workbench, right click on the Solution cell in the Eigenvalue Buckling analysis and Update. Wait till the cell gets a green check mark.
  
  Then right click on the Model cell and Refresh.
  
  If you don't get a green check mark on Eigenvalue Buckling, then you have to open the first Model cell and investigate why in Mechanical.
- April 30, 2020 at 12:12 pm
  
  Luana
  Subscriber
  
  Dear Peter,
  
  Thank you for your fast reply, it helped me a lot.
  
  I succeeded to continue with the nonlinear analysis, but new problems appeared. I've found this topic: "Modelling plastic deformation of a column", with the the same problem, and you gave links in your comment on 29 March 2019. Unfortunately these links are no longer available, could you repost it here please?
  
  /forum/forums/topic/modelling-plastic-deformation-of-a-column/
- April 30, 2020 at 12:35 pm
  
  peteroznewman
  Subscriber
  
  It seems ANSYS has gobbled up this site as it no longer exists.
  
  I found the pdf file here.
- February 25, 2021 at 7:40 am
  
  solomonendalew
  Subscriber
  
  the same problem I use ansys workbench 2021 R1 and run an non linear plastic static analysis for a SHS section column it's ok. but I have to Questionsn1) I want to connect Eigenvalue buckling solution to static model not active. n2) I want to add initial Imperfections in geometry but i can't do that.n nI appreciate anyone have advanced help to fix my problem. thank younn
- November 27, 2023 at 6:57 am
  
  ErKo
  Ansys Employee
  
  Closing this post

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