Learning Forum

[memo]

Hi Everyone,

I want to model a rope's failure when stretched more than its max strength limit. Is there any way to see this failure in ANSYS? I want to see it sliced into two segments at locations with high local stress concentrations.

I appreciate any help that you can provide.

[Chris Quan]

Yes, it is possible to simulate the material failure and break in ANSYS Workbench. You can either use Explicit Dynamics system or LS-DYNA system to simulate the material failure.
You need to apply material failure model in Engineering Data such as principal stress/strain or effective plastic strain failure to the rope material so material knows what its strength limit is.
To simulate the break of the material, if Explicit Dynamics system is used, you need to set Material failure to Yes in Erosion Controls under Analysis Settings. This will remove the element from the model automatically when the material in the element fails. Once failed material is removed from the model, you will observe the break.
If LS-DYNA system is used, you don't need to do anything since material will be automatically removed from the model once the material in the element has failed.

[memo]

Just now I saw your response. Thank you very much for your help.
So there is no way to do this in ANSYS Mechanical/MAPDL? I want to couple my structural solver with the fluid flow solver. I know how to do this in ANSYS Mechanical but not sure if this is possible using ANSYS LS-Dyna or Explicit Dynamics.
Kind regards

[Chris Quan]

If you want to use Mechanical/MAPDL, you can use commands such as EKill to remove the elements if they are no longer used.