These are some advanced stuff here but the principle is pretty basic.
Caesar Salcedo is quite a master in blender and shown a tension map use here : https://www.youtube.com/watch?v=mmNsyTqVyj0
It generate a red/black/green dynamic vertex colour map wich can then be used to drive anyting like a displacement map, a normal map, a bump map etc….
check this out : https://www.youtube.com/watch?v=6G8SkBQngvw
I’ve also covered this rapidly a few years ago with driven masks linked to a rig.
https://youtu.be/g30BykuplF0?t=763
You have to lead your own tests here 😉
