And yes, some of your idea that carbon fiber is brittle may come from the fact that it has very low elongation and elongation at break, but this means that when

And yes, some of your idea that carbon fiber is brittle may come from the fact that it has very low elongation and elongation at break, but this means that when it finally breaks, it will be a sharp event (e.g., compared to steel which starts by deforming), but that break is after far higher loads.