Orthotropic plate test, input Engineering constants

ing515ing515
I want to replicate the test of an orthotropic plate subjected to uniform pressure.
I am not very familiar with shell modeling and orthotropic materials, I am facing difficulty inputting the material properties, as the engineering constants provided by the test are not directly usable as inputs for the software.
Can you help me understand?.
Thank you all.

Comments

  • ing515ing515
    it seems from books that the min input are E1, E2, v12 and G, but mecway returns an error if the shear modulus input are incomplete


  • VictorVictor
    You can use arbitrary large values, such as 1000 * G12. This approximates no transverse shear flexibility like a Kirchhoff thin plate.
  • ing515ing515
    Thanks Victor, it works!


  • VictorVictor
    Do you mind if I also ask what field or culture uses these daN units? I've never seen that before.
  • AndreaAndrea
    edited September 2025
    In Italy, particularly in the civil engineering field, the daN (dekanewton) is often used because it's approximately equivalent to the kgf (kilogram-force).
    Personally, as a mechanical engineer, I never use it because it's combined with centimeters. I hate cm.
  • VictorVictor
    Thanks Andrea
  • AndreaAndrea
    edited September 2025
    That's another curiosity. In Germany, for stress, they often use kN/cm². (kilonewton per square centimeter). I found it on several publications about cranes (kranen) and craneway (kranbahnen)
  • MishalMishal
    South African here, I just started working for an Austrian company. I am still getting used to working in kN/cm², my brain is built for kN and meter or N and mm...
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