Plane Strain in Optistruct

Santiago Londoño
Santiago Londoño Altair Community Member
edited April 2023 in Community Q&A

Hi, how can I make the configuration for flat tension in optistruct? there is a file for this but I can't get it to run correctly. https://2021.help.altair.com/2021/hwsolvers/os/topics/solvers/os/analysis_of_pressure_vessel_problem_r.htm

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Answers

  • Robinson Ferrari_20451
    Robinson Ferrari_20451
    Altair Employee
    edited November 2022

    Hi Santiago,

    Which version are you using?
    Please try using the latest release v2022.1.

    You can find attached the results files as well.

    Let me know if it works for you.

    Thank you,

     

  • Santiago Londoño
    Santiago Londoño Altair Community Member
    edited November 2022
    Robinson Ferrari_20451 said:

    Hi Santiago,

    Which version are you using?
    Please try using the latest release v2022.1.

    You can find attached the results files as well.

    Let me know if it works for you.

    Thank you,

     

    Thank you very much Robinson, I am using the latest version, sorry for the inconvenience, how can I open the file you attached in the program?

    Thank you very much

  • Robinson Ferrari_20451
    Robinson Ferrari_20451
    Altair Employee
    edited November 2022
    Santiago Londoño said:

    Thank you very much Robinson, I am using the latest version, sorry for the inconvenience, how can I open the file you attached in the program?

    Thank you very much

    Hi Santiago,

    Please take a look at this playlist here on Altair How-To Youtube Channel:

    If this works for you, please consider marking the answer as correct to help others. Otherwise, let me know how I can help you.


    Thank you

  • Santiago Londoño
    Santiago Londoño Altair Community Member
    edited November 2022
    Robinson Ferrari_20451 said:

    Hi Santiago,

    Please take a look at this playlist here on Altair How-To Youtube Channel:

    If this works for you, please consider marking the answer as correct to help others. Otherwise, let me know how I can help you.


    Thank you

    Hi Robinson
    Thank you very much but it does not work, I need to know where I find the CQPSTN function that is the flat tension, because when I make my model I can not do the analysis I need, because when I do it I get the error 14. I attach the model and the . out file.

    2.hm 50.4K
    2.out 17.3K
  • Santiago Londoño
    Santiago Londoño Altair Community Member
    edited November 2022
    Santiago Londoño said:

    Hi Robinson
    Thank you very much but it does not work, I need to know where I find the CQPSTN function that is the flat tension, because when I make my model I can not do the analysis I need, because when I do it I get the error 14. I attach the model and the . out file.

    Sorry, my mistake, it's plane strain, not flat tension

  • Robinson Ferrari_20451
    Robinson Ferrari_20451
    Altair Employee
    edited April 2023
    Santiago Londoño said:

    Hi Robinson
    Thank you very much but it does not work, I need to know where I find the CQPSTN function that is the flat tension, because when I make my model I can not do the analysis I need, because when I do it I get the error 14. I attach the model and the . out file.

    Hello Santiago,

    In an HM session, go to 2D panel, elem types, 2d&3D, and change CTRIA3 and CQUAD4 to CTPSTN/CQPSTN respectively. Select all elements and click update.
    Now you will use the correct elements for plane strain.
    Also, define PPLANE for the property instead of PSHEAR.

    Thank you very much, and please consider marking the answer as correct if this works for you. 

    Thank you very much,

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