Inspired by, quote: "My view on this is of a more simple way. The rules of equilibrium constant. The world likes to be ballanced. If preassure is applying on a force to such a rate the changes in pressure around the object will be such that it will try and keep the item equil. This creates vibrations resignating throught the object. The resignating frequency and the matirials tendancy to resignate will change the rate of vibrations from preassure. So in summary lead will vibrate with a higher frequency but require more energy and wood will vibrate easier but have a lower frequency max. Its all about the matirial the configuration of the matirial with the maluable and ductile properties creating a resignating frequency to release the bonds causing a fracture or shred at the weakest point. At a certain point design stops. All you can do is ensure its the best to have the strongest point at the highest stress point and reduce the load on the weak points. Also ability to control wind flow around the object through design may help however I dont think its too much of a use in a rocketry design application much to effect rockets easily reaching mach 1. Practical applications to the above in case your confused. 1: Matirials are important. - A potato will not have the stability to go mach 1 the bonds in the item can not take the preassure. 2: Design is not everything - A potato designed for the best aerodynamics will still not go mach 1 however carbon fibre could with enough ...