The solver engine was unable to converge on a solution for the nonlinear problem as constrained.

- July 3, 2019 at 1:18 am
  
  cyber994
  Subscriber
  
  hello,
  
  I'm trying to run a non-linear analysis for shape memory effect of 2d plate in ANSYS 19.2.
  
  I tried to simulate the conditions on the basis of a successful shape memory effect ANSYS sample obtained separately,
  
  if the sample has not added to the material properties do not change at all even if the thermal coefficient of thermal conditions could not confirm the SME.
  
  There is a problem of not converging even though the thermal coefficient is added.
  
  Please let me know if you can help me get the results.
  
  Thank you.
  
  Regards.
- July 8, 2019 at 4:24 pm
  
  Sandeep Medikonda
  Ansys Employee
  
  Try the suggestions discussed in the help
  
  Useful Discussion
- July 19, 2019 at 5:45 am
  
  cyber994
  Subscriber
  
  The discussions and help you presented seem to be about thermal analysis contacts and statical contacts. I have no statistical porblem in the previous two steps, and I am seeing an error in the step corresponding to the SMA shape memory effect. It does not seem to be the case in the two cases presented.
- July 19, 2019 at 10:26 am
  
  jj77
  Subscriber
  
  Not sure about this effect (never done anything like this), but from a FEA point of view one thing to try is to refine the mesh in that part especially though the thickness. At least two elements through thickness. But as you say it seems to struggle in the end where the memory effect starts (do not know much about this so I can not be of much help).

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