Bonding shell elements face to face

SnuggleKittensSnuggleKittens
Hi all,

Just wondering if it's possible (maybe in Calculix?) to model something like this with shell elements all bonded together:

It's basically several thin plates of different sizes all bonded together face to face.

Cheers,

Comments

  • VictorVictor
    edited January 2019
    It should be possible with various ways:
    • Bonded contact with CCX and the Elastic option
    • Internal solver with bonded contact
    • Merge the nodes of the 3 layers and use Shell offset in element properties to position them.
    • Laminate material also with Shell offset to align the 3 different thickness regions
    • If they're all the same material, a single plate with different thickness in each region and Shell offset to align them
  • SnuggleKittensSnuggleKittens
    Hi Victor! Thanks for the reply!

    I managed to get it working with both ccx and internal with bonded contacts.

    I should mention i'm mainly interested in thermal stresses and deflection caused by CTE mismatches. I understand Shell offset might not be an option here (is this the case with CCX also?).

    Also loving Mecway! keep up the great work :)
  • VictorVictor
    Good to hear. Shell offset works for differential thermal expansion with the CCX solver but not internal. I would prefer to use solids for that if possible though. Or at least validate part of it against a solid model if your structure is too complex.
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