Lew_Merrick
Guest
Look, the stress in a elliptical ended cylindrical pressure vessel may be determined from the equation S = Pr/t where S is the resulting value of Stress, P is the (maximum) applied Pressure, r is the Inside Radius of the vessel, and t is the Wall Thickness of the vessel. However, should you wish to calculate the required Wall Thickness, you need Parametric Values such as the Material Yield Stress of the material making up the vessel, and a Load Factor that is determined by (A) the variability in "pressure pulses" within the vessel and (B) the ability of the Fluid being pressurized to "combust" or "pyro-activate" within the vessel. Thus (applying LF as "Load Factor" to the equation set and Sy as the Yield Stress for the material), you get t = Pr/ (LF * Sy) which is, because of the "external data elements," a Parametric Relationship.
[I spent no small part of 2006-2007 developing and qualifying the hypergolic fuel pump that fed the steering thrusters for the Transfer Vehicle that carried the Curiosity Rover from Earth orbit to Mars orbit. Now, what if you really are a rocket scientist and you don't under-stand it?] -- Lew
[I spent no small part of 2006-2007 developing and qualifying the hypergolic fuel pump that fed the steering thrusters for the Transfer Vehicle that carried the Curiosity Rover from Earth orbit to Mars orbit. Now, what if you really are a rocket scientist and you don't under-stand it?] -- Lew
