Learning Forum

[Ikram.MARZOUKI]

Hello everyone,

I am working on a three-point bending simulation on a composite sandwich structure with a NIDA core in ANSYS Mechanical.

In my model, I apply a Remote Displacement on the upper cylinder, with a prescribed translation in the Z direction. After running the simulation, I evaluate the failure criteria of the composite facesheets.

What I would like to achieve is the following:
instead of prescribing a final displacement value and checking failure afterward, I want the simulation to automatically stop at the displacement where the first failure criterion is reached (damage initiation or rupture).

In other words, I would like the solver to stop when a failure index reaches 1, and to directly obtain the corresponding displacement value.

Is there a way in ANSYS Mechanical to:

• stop the analysis based on a composite failure criterion, or

• link the stopping condition to damage initiation, material failure, or a user-defined result?

Any guidance, examples, or recommended approaches (e.g. nonlinear analysis, APDL commands, user-defined results, or damage models) would be greatly appreciated.

Thank you very much for your help.

Best regards,

[Raman Babu]

The NLHIST command can be used to terminate the solution once the selected result item attains a specific value. 

The approach can be used within Mechanical through a command snippet.

[joshua.berardo]

How can I check grades from a certification exam that I did not pass? Just asking. Please help me out, I would really appreciate it.

[sanzeuseb]

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