Statsub card problem

hiranwale_bharat
hiranwale_bharat Altair Community Member
edited October 2020 in Community Q&A

Hello

I gave a beam a certain compression load in the first case. In the second case i gave same value of tension and used statsub preload card by referencing previous case.

I excepted the displacement to be zero but it is not.

Can anyone tell me what went wrong?

I guess the cases are not nested.

Regards

Bharat

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited August 2015

    Hi,

     

    Please have a look at Opistruct user guide for Prestressed analysis Results section.

    Attached screen shot for your reference.

     

    Regards

    Rahul R

    <?xml version="1.0" encoding="UTF-8"?>post-36845-0-49039700-1438587938_thumb.j

  • hiranwale_bharat
    hiranwale_bharat Altair Community Member
    edited August 2015

    Hello Rahul,

    Thank you for the reply.

     

    I have read the section you have shown. I am confused about the sentence which states that the results are to be superposed to get overall results. How can I do that? Do I have to use derived load steps in hyperview? I have done that and got the results as I expected. But then what is the use of giving statsub card?

    I can always create two separate cases and create a derived load step between them to get the results without using statsub.

     

    Regards,

    Bharat

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2015

    Hi Bharat,

     

    Please use Linear superposition loadstep and check the displacement values.

     

    HV-3080: Creating Linear Superposition Loadsteps
  • hiranwale_bharat
    hiranwale_bharat Altair Community Member
    edited August 2015

    Hello Prakash,

    I have created linear superposition already and have obtained the required results. But my question is that I can do it without using STATSUB card. So what is the use of that card?

     

    Also from the image Rahul shared above the sentence which sates that ' for preloaded analysis results are to be superposed to get overall results'

    How can I do that? Do I have to always use linear superposition? What if my subcases are not linear ?

     

    Regards

    Bharat

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