I am trying to develop my own spring steel version of a carbon fiber running blade that you might see in the paralympics. Except mine is for someone who still has their foot/leg. Nothing like that exists and out of necessity I am trying to develop one that is similar and I think i might be able to do it using a less expensive material too. I really need help calculating what steel to use, thickness, width, angles, etc. Carbon fiber is ideal but very expensive. Would spring steel work? Any concerns with that choice other than a bit heavier? It would have to be formed in the shape of a "J"This would need to support a 215 pound person walking, running etc. Any help is greatly appreciated!
closed as too broad by Wasabi♦, Fred, Mark, OpticalResonator, Daniel Kiracofe Aug 7 at 23:10
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.