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@NurseHolliday
You're going round in circles you daft twat.
Flex is elastic deformation. It is designed into a composite material, hell, all alloy materials to allow a component to deform slightly without any damage to the component.
Plastic deformation is when the material deforms to the point is unserviceable. Carbon fibre does not behave like alloys where it flexes in the elastic phase, noticeably bends (and stays bent) in the plastic phase, then total failure is reached when the component breaks.
Carbon fibre flexes then splinters. That's your lot. There will be a small plastic deformation phase but it won't be noticeable. If you own a permanently bent carbon fibre part then it's shit.