Ansys Workbench Non-linear Spring

- November 17, 2022 at 9:05 pm
  
  Sunjung Kim
  Subscriber
  
  Hello All,
  I am using ANSYS workbench to model a ligament using a spring element. but I am wondering if I can make a non-linear spring without manually putting the parameter for the force-deflection curve in COMBIN 39 element type. I noticed that there is an option for material type in spring properties but I am not sure if I place the non-linear material in spring properties in the COMBIN 14 (linear spring type), the spring behavior can appear as non-linear.
- November 22, 2022 at 1:45 pm
  
  Chandra Sekaran
  Ansys Employee
  
  COMBIN14 is linear only even if you define nonlinear material properties. I think the combin39 approach you mention is best.
- January 12, 2023 at 5:25 pm
  
  wrbulat
  Ansys Employee
  
  If you want your nonlinear behavior to be based on a nonlinear material property and not entered manually in tabular fashion (as required by COMBIN39), you might try LINK180. The nonlinear material models that this element supports are shown below: