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  1. SergioP

    Export to IDEAS file

    I-DEAS use to export simulations in unv format, gMesh (free, gnu) can import/export in unv; also NX can import/export in unv.
  2. SergioP

    How to improve Natural frequency of a System(assembly of more than 20 Parts interconnected)

    Try to: Decrease the weights Increase the stiffness of the assembly Lowering the center of gravity Add more fixation points
  3. SergioP

    Calculation of Stiffness for a Non Linear Spring

    If is nonlineal, you should define two points (load or displacement) near to your interest area and take the stiffness (secant) at this points, but you must always inform that points. Is the way used for rubber part that are not perfectly lineal springs.
  4. SergioP

    Price of FEA software?

    Hi, I'm in charge of the FEA team in an automotive company, so we deal (and suffer) with that numbers, please send me a PM if you need the real numbers. Guess that is not possible to post it directly.
  5. SergioP

    PET Bottle drop test - How to use the volume fraction tool

    Hi, I'm trying to do a drop test of a PET bottle, using the Abaqus Manual Example: https://www.tu-chemnitz.de/projekt/abq_hilfe/docs/v6.13/books/exa/default.htm?startat=ch02s03aex85.html I was able to run the model, but now I want to use my own bottle. I managed to introduce in the assembly...
  6. SergioP

    PET Bottle static Crush test - How to simulate the air or water inside?

    Hi, I'm doing some FEA of PET bottles, but I want to take in count first the air trapped inside (as if the test were with the empty closed bottle), second with water inside, and after with a mix of water and air. I have tried to apply a pressure inside the model, but it inflates that doesen't...

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