Originally Posted by
noglider
Don't confuse strength with flexibility. Strength is the amount of force required to break something which, in this case, means deforming it so it doesn't spring back to the original shape. Flexibility is the measure of how far it deflects under a given amount of force as long as that force is less than the breaking force. These measurements are totally different.
I do get that, I think. I was just thinking that it must be possible to design for a certain amount of flexibility, given the constraints of the material's strength. But although I loved science courses in college, i never did anything in the fields of engineering or material sciences.