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Recent content by pmetelos

  1. pmetelos

    BCs on a pressure cylinder

    Hi everybody, I am having some difficulties in modelling a cylinder with an internal pressure and edges loads. In one edge I am applying constraints in all dofs but on the other I have to apply loads and moments in all directions. The element I'm using is solid45 in order to visualize the stress...
  2. pmetelos

    Silicone mechanical properties variation

    Actually, I have tried with Dow Corning but with no sucess (no tests were performed on this adhesive). The silicone I am searching is the RTV 3145 (Dow). The problem is that I have experimental data for a thickness and I would like to have a full behavior variation for a range of thiknesses...
  3. pmetelos

    Silicone mechanical properties variation

    Hi. I am searching for studies made on silicone adhesives to find mechanical properties (young's modulus) on a bonded joint, varying the thickness of the silicone layer. I came up with different values for the Young's modulus varying from 1.5 to 1000 MPa! Can anyone let me know where I can find...
  4. pmetelos

    MSC.Nastran Elements Manual

    Hi, I am searching for any Nastran online manual for elements. Is there someplace where it is possible to download it? Thanks in advance.
  5. pmetelos

    Manufacturing techniques

    Hello, I am searching for manufacturing techniques for composite materials with epoxy/glass fiber. Namely, techniques that have low cost of production but allow a good surface precision and finishing, since I want to produce very small quantities with low initial investment. Where do you think I...
  6. pmetelos

    Hi. I am searching for the manufac

    I found somewhere the properties of this prepreg and they were the most suitable for me. This epoxy resin was increasing the stiffness of the ply. Later, I decided to propose a different material which can be also useful, the Carbon/Cyanate M-40J / 954-6 from Hexcel, so I stopped my search for...
  7. pmetelos

    Hi. I am searching for the manufac

    Yes, I can try to contact all the companies but the problem is that I don't even know if it is a standard prepreg. What I am searching for is the prepreg properties including the thickness manufactured, since I need to make an isotropic laminate of 0.5 mm with a minimum of 6 layers. That is why...
  8. pmetelos

    Hi. I am searching for the manufac

    Hi. I am searching for the manufacturer of a Carbon Epoxy prepreg with T300 and N5208. Does anybody knows?! Thanks in advance!
  9. pmetelos

    random vibration analysis

    I am also looking for the same thing as "rama", including the Miles equation but I can't find anything! Those books and papers are impossible to find... Have you already have anything on the subject?
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