Wing rib assembly to wing skin

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

Hi guys,

 

do you have any ideas how to model an assembly with multiple composite components? As shown here http://www.rowlandcarson.org.uk/aviation/europa_435/_images/dscn1733.jpg I want to model ribs which are bonded to a specific surface. Do I have to do that with sub-laminates? Are there any tutorials for sub-laminate modeling?

 

I am using HW13.0

 

Thank you in advance.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2016

    Hi Wiko,

     

    Check this link below:

     

    http://www.altairuniversity.com/wp-content/uploads/2012/06/Composite_Pre_Postprocessing.pdf

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

    Hi Prakash,

     

    thank you for the presentation. I tried to realize the sample with a T-beam. The lay-up can be compared to the example, which can be found in the HW-Help (XXXX/Altair/13.0/help/hwsolvers/stack.htm?zoom_highlightsub=ply example 2). I have attached the .fem-file of my model and a short summary of the lay-up.

     

    Actually, I have 4 sublaminates and an interfacelaminate to 'bond' all sublaminates together. I have assigned PCOMPP-property to all mesh-elements. After modeling, I have started a short analysis of the beam but the following error-msg appeared:

     

    *** ERROR # 640 ***
     STACK 5 is incorrectly or ambiguously defined. This could be
     due to disconnected substacks, duplicate interfaces or inconsistent
     interfaces orientations. Please verify the substacks and interfaces
     thoroughly.

     

    Can you give me a feedback with hints to solve this problem? Another question is, does the geometry have to be 'connected together' for modeling a laminate with sublaminates?

     

    Best regards

    Wiko

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2016

    Hi Wiko,

     

    I will have a look at the model and update to you soon.

     

    thanks for sharing the file :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2016

    Hi,

     

    Just interchange the INT3 plies and everything should work fine :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>

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

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2016

    Oh, I get it :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'> Thanks! Well does that mean that I have to build up the interface laminate according to the element normal? Like ply8 on the bottom and ply 4 as the second ply?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2016
    Altair Forum User said:

    Well does that mean that I have to build up the interface laminate according to the element normal? Like ply8 on the bottom and ply 4 as the second ply?

    Yes, exactly :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>

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