NLGEOM analysis problem

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

Dear all

      I am using NLGEOM method to solve a nonlinear problem. I want to use discrete date to define material. And the first (x1,y1) are (0, 310), 310 is the initial yield point.

But when I analysis, there comes a problem. The following shows the problem.

 *** ERROR # 3002 ***
  The first point (X1,Y1) specified on the TABLES1 bulk data entry ID=5
  is not located at the origin of the stress-strain curve.

 

I don't know why, could you help me with that?  The model I used is as follows.  Thanks!

 

Unable to find an attachment - read this blog

Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    Which version of Hyperworks you are using?

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    See attached screenshot from Help.

    <?xml version="1.0" encoding="UTF-8"?>Error 3002.JPG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    The LIMIT1 field can be blank, if the initial yield point value is defined via a referenced TABLES1 entry on the TID field.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    The LIMIT1 field can be blank, if the initial yield point value is defined via a referenced TABLES1 entry on the TID field.

    I tried that, but it doesn't work.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020

    Which version of Hyperworks you are using?

    I used version 13.0. I can upload .fem file.

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    See attached screenshot from Help.

    <?xml version="1.0" encoding="UTF-8"?>Error 3002.JPG

    hi, Rahul

         I have already set TYPSTRN value to 1, but there still comes the error message. I don't know why. Eager for your answering. Thanks!

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    Change Mat type to Plastic and run the analysis.

    <?xml version="1.0" encoding="UTF-8"?>123.PNG

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

     I checked your model & it seems that you defined MATS1 parameter correctly.

    I ran your model and it ran complete without any error in 14.0 (210 solvers patch)version.Same file if i run in 13.0 it throws error 3002.I am not sure about reason.

    But if you have access to 14.0 please try same in latest version.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

     I checked your model & it seems that you defined MATS1 parameter correctly.

    I ran your model and it ran complete without any error in 14.0 (210 solvers patch)version.Same file if i run in 13.0 it throws error 3002.I am not sure about reason.

    But if you have access to 14.0 please try same in latest version.

    Thanks for your patience. Sorry I don't have access to 14.0.  

    I have changed the first date to (0,0), second data to (0,310)  and set TYPSTAN to 0, then it can be run without error.

    But I don't know whether the result is right or not. Could you tell me?

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    Most of the time we accept results comes out of implicit solver.I believe you would have setup load & boundary condition property with correct material properties.

    If testing results is available then one crosscheck with same.Results is right or wrong that analyst need to evaluate based on engineering skills.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    Most of the time we accept results comes out of implicit solver.I believe you would have setup load & boundary condition property with correct material properties.

    If testing results is available then one crosscheck with same.Results is right or wrong that analyst need to evaluate based on engineering skills.

    Thank you very much!