Scales, Offset, and Axis Assignments

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

Hi everyone,

I am performing a tensile test on a test coupon bar, accordingly to the tutorial proposed at the part 3.1.5 of Nonlinear_FEA free ebook by Altair. I have some problems in plotting the stress-strain curve: I do not understand why some scale factors are introduced and why the designer chose those values. My main problem is which scale factors values choose for my plot: I use another .fem virtual desk, I create the spring and the RBE2, then I follow document/video steps.

 

Best regards

Martina

<?xml version="1.0" encoding="UTF-8"?>1.JPG

<?xml version="1.0" encoding="UTF-8"?>2.JPG

Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2019

    Hi

     The scale factor is applied to have the unit consistency , since here the test data is compared with the analysis result and these two curves are plotted in the single page  

     

     

  • MartinaC
    MartinaC Altair Community Member
    edited March 2019

    Ok, thank you.

     

    So, why the X component of tests results is multiplied by two? Is it due to simplifications during test procedure, or due to FE problem setting, or something else?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2019

    Hi

       Its just scale factor applied for magnification.