Cylinder under compressive load between two plates

- July 23, 2020 at 12:23 pm
  
  krada
  Subscriber
  
  Hello everyone.
  
  I want to model a cylinder between two plates under compressive load. In actual condition, it is line contact problem of Hertz and i want to simplify this model with combination of non-linear springs COMBIN39 and MPC184 element. I am using ANSYS APDL coding and direct mesh generation method. So, there is no Solid model available only FEA model. While doing solution i am getting error of highly distorted elements and solution is not converged. i have used following set-up for model.
  
  COMBIN39 Set-up : Assign force-deflection relations ,which calculated from analytical equation, in real-constant set. I also tried with 1D and 3D spring element but the results are same.
  
  MPC184: default setting
  
  SOLID185: plate elements
  
  B.C. : force on all nodes ( Y- direction) of top surface of top plate. Also constrained top plate in perpendicular direction to force ( X&Z).
  
  i have attached my code and deformed results pictures. Any help would be great.