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  1. Hood91

    Shear Stress in Dual Core Honeycomb

    There are aluminium skins top and bottom. The top skin (atop the denser honeycomb) is thicker. It has been designed this way to stop crushing (the panel must withstand vehicle driving loads). If I imagine this as a beam in 3 point bending, I would expect the behaviour to be the same as if it...
  2. Hood91

    Shear Stress in Dual Core Honeycomb

    I guess no one knows for sure! Yes, ESPcomposites - that is the approach I had taken. I was more asking as a matter of interest as I wasn't sure how to analyse it if, for example, the lower density core was not able to take the entire load. I may create an FE model to see the result that...
  3. Hood91

    Shear Stress in Dual Core Honeycomb

    I'm not sure it works the same as in equivalent sections because the honeycomb obviously doesn't take any end load and so all tension / compression must be taken in the outer skins. The tension and compression must be equal and opposite, which is leading me to believe that the shear force...
  4. Hood91

    Shear Stress in Dual Core Honeycomb

    Hi All, I can't seem to quite figure out how this works. I'm analysing a honeycomb panel which has a higher density core above a lower density core (for local crushing issues). When this panel is subjected to bending, is the core shear distributed out depending on the shear modulus and depth...
  5. Hood91

    Automating CBUSH creation in large model

    Hi everyone, I'm currently working on a project that involves creating a very large DFEM to the level where we intent to model rivets as CBUSH elements. Due to the size of the model, the amount of rivets will be in the 1000's. We have created a macro in excel that can take two lists of...

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