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What iterative method does ansys use to solve nonlinear problems?

- May 13, 2024 at 7:55 am
  
  a.fontanella1
  Subscriber
  
  HI!
  I implemented a transient analysis in Ansys Mechanical with a contact nonlinearity (a frictionless contact) between surfaces. A time-dependent nodal displacement is given and the time deformation of the structure is evaluated. When solving the nonlinear problem does Ansys use interactive methods for convergence (Newton Raphson or similar)? Is technical documentation available on this matter?
- May 13, 2024 at 10:43 am
  
  Erik Kostson
  Ansys Employee
  
  Hi
  Q: “When solving the nonlinear problem does Ansys use iterative methods for convergence (Newton Raphson (NR) or similar)? Is technical documentation available on this matter?”
  
  A: Yes, it uses NR method for nonlinear problems.
  14.10. Newton-Raphson Procedure (ansys.com)
  See here on how to open the above link:
  /forum/forums/topic/how-to-access-the-ansys-online-help/#:~:text=Open%20Ansys%20Workbench%20(or%20any,A%20browser%20window%20will%20open.
  
  All the best
  Erik

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