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Hello. I’m about to start a research project on fault rupture in soil, and I found that there’s a UMAT for Abaqus that can accurately represent soil strain-softening post-peak. Is there anyone who can assist me in finding or writing one?
Thank you very much.

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Hi,

I have some articles that I share their links below. They can help you understand what the UMAT subroutine is and how you can write one.

https://caeassistant.com/blog/start-writing-your-1st-umat-in-abaqus-foundation/

https://caeassistant.com/blog/start-writing-your-1st-umat-for-abaqus-construction/

Also, watch this video. You might find it useful: https://www.youtube.com/watch?v=96sfwnvLHkA

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