Reaction force on cross section

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

Hi

Yesterday, I have tried to determine the reaction force of the beam by applying the impact load (Drop test).

I defined the cross sections not only on the beam surface (shell element) but also on the impactor  (solid element).

After solving, I found that , the cross section on solid element shown the reaction force perfectly but for the shell element, it shown the worst result (oscillation)

and magnitude, These are shown as picture below,

How can I determine the  normal reaction force on the shell element by using cross section.

 

Thank you for your kindness

 

Best regards

 

Nut

<?xml version="1.0" encoding="UTF-8"?>Result.thumb.png.0254e422cc314f42c429dff29621f73c.png

Tagged:

Answers

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

    Hi Nut,

    A section is a cut in the structure, where forces and moments will be computed and stored in output files. You can create a output block (/TH/SECTIO) where this is recalled.

    I'm attaching a document on sections where this is explained more.

    Unable to find an attachment - read this blog

  • Wisawanart
    Wisawanart Altair Community Member
    edited November 2017

    Hi

    I defined the neccesary card for the cross section but as i said, i got the worst result as previous post.

    The picture below shown the area of cross section on the shell surface and also the card details.

     

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

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

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2017

    Hi,

     

    I would like to ask, how to compute the [alpha] filtering coefficient in the card of creating the section force?

     

    Thank you.

     

    Bes regards,

    Vicelyn

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2017

    Hi Vicelyn,

    Please go through the Help Menu on /SECT where this computation is shown.

     

     

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

  • Hoan_21498
    Hoan_21498 Altair Community Member
    edited October 2020
    Altair Forum User said:

    Hi Nut,

    A section is a cut in the structure, where forces and moments will be computed and stored in output files. You can create a output block (/TH/SECTIO) where this is recalled.

    I'm attaching a document on sections where this is explained more.

    Unable to find an attachment - read this blog

    Hello

    Could you please reup the file?

    Tks

Categories