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Can we use Abaqus directly to run a long cycle simulation similar to an experiment, or do we need to add a subroutine?

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Hello,

Depending on your material and formulation for the cycling, you need to use UMAT or USDFLD subroutine to do such a simulation. I can recommend you some tutorial videos for now:

https://www.youtube.com/watch?v=96sfwnvLHkA

https://www.youtube.com/watch?v=Go8entmePiQ

Simulation of Fatigue in Abaqus

Composite Fatigue Simulation with UMAT Subroutine in ABAQUS (unidirectional)

If you need any example files, visit this site and search your keywords:

https://caeassistant.com/example-bank/

If you need any help in advance, I’ll be happy to help you out.

Best regards.

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