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modelling composites in 2D

- April 27, 2025 at 11:53 pm
  
  leila
  Subscriber
  
  Hello,
  I want to model a composite in 2D plane stress using ANSYS Mechanical. I have already defined the material properties for each composite layer. How can I define the fiber orientation, considering that it is a 2D model? Specifically, the fibers are oriented at 45 degrees relative to the XY plane.
  Is this possible in ANSYS?
  Thank you for your help!
- April 28, 2025 at 1:46 pm
  
  Govindan Nagappan
  Ansys Employee
  
  See if you can use the "element orientation" in Mechanical to rotate/change the element coordinate system.
  Material properties are applied in the Element coordinate system
- April 28, 2025 at 2:41 pm
  
  leila
  Subscriber
  
  Thank you for your reply. Unfortunately, "element orientation" is disabled for 2D analyses in ANSYS.
  Do you have any suggestions on how I can define the fiber orientation of the composite as out-of-plane (e.g., 45°), even though the surface lies in the XY plane?
  Looking forward to your insights

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