General Mechanical

General Mechanical

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What iterative method does ansys use to solve nonlinear problems?

    • 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?

    • 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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