How Ansys Defines Spherical Joints

- April 26, 2023 at 12:35 pm
  
  Sam Ho
  Subscriber
  
  Hello, I am trying to simulate a spherical bridge bearing. However, I'm not sure if I need to define bonded contact between the two parts, With and without bonded contact they yield slightly different results. How does Ansys treat the contact between the faces for spherical joint if I don't define it as bonded?
  Figure 1: With Bonded Contact
  Figure 2: Without bonded contact
  
  Although the deformations look similar, the stresses differ by approximately 25% which I consider to be quite big. The mesh, material and forces applied are identical in both scenarios.
- April 28, 2023 at 12:27 pm
  
  Ashish Khemka
  Forum Moderator
  
  Hi Sam,
  Can you please check the location of maximum stress and share the same? Also, please check if the maximum stress location is a singularity.
  
  What causes singularity in your FE model? - FEA for All
  
  Regards,
  Ashish Khemka