What do you want the can to be capable of? Is 17-4 just really brittle? How did it go through 10 heat treated baffles? The female taper mount is 17-4, threaded into the tube, 28 pitch on the. The resulting stress can be calculated with. The formula for hoop stress is the internal pressure times the internal diameter of the cylinder, divided by twice the wall thickness of the cylinder. Because max Saami ammo for 308 Winchester is around 13000-14000 psi for muzzle pressure at 16 inches. Secondary stresses are due to cyclic thermal expansion and contraction. Later work was applied to bridge building, and the invention of the.
Yielding is governed by an equivalent stress that includes hoop stress and the longitudinal or radial stress when absent. There are many different types of steel alloys, and they all have different properties and yield strengths. And, when you ask this basic question this way, you probably shouldn't be considering this problem alone, or coming here for the quick and easy answer. Of course there is no qualification required to do the math. There are many very capable people here who are more than welling to help young people learn the ropes, but they tend not to like to teach at the high school physics level of knowledge.
It's the other things he might be up to that worries me. Each element of pipe are subjected to the below mentioned stresses which act in the direction as shown in the fig. I'd love to show you, but don't currently have photo hosting since Photobucket's cash grab, and most other boards have internal hosting I use. Different shapes of pressure vessels exist but most generally cylindrical and spherical shapes are used. The type of hoop stress measuring wall tension is calculated as the force over the axial length. S L is the longitudinal stress in the sustained load condition.
Expansion Loops Expansion loops are of same pipe material. Mosby Elsevier, Rapid Review Series. Another is that you be honest with us in representing who you are, what you do, and your level of experience. They have bet high safety factors. The of the post is 5.
For example, a member with a rectangular cross-section of 1 x 2 inches has a cross-sectional area of 2 square inches. Dont use Ti for high pressure rapid fire I do. The classical example and namesake of hoop stress is the applied to the iron bands, or hoops, of a wooden. According to geometric properties and pressure, principal stresses and maximum shear stress on the surface of the vessel can be calculated. You could pretend you have a normal circular cross section taking the longest side of the rectangle as your diameter.
If you and YesYou83 don't know where to look for these kinds of answers, on your own, or you need a computer program for these kinds of problems, you probably shouldn't be pretending to be engineers and you sure as hell shouldn't be doing engineering work which could harm others. Only put off until tomorrow what you are willing to die having left undone. Ti weakens more than heat treated 17-4 at temperature, but it's still not weak. Accounting for friction will reduce the radial force. Otherwise the the normal force of thread on thread has both vertical and horizontal components, during and after torquing. Stress is the relationship of force over a unit area, and it allows for the comparison of material strengths independent of cross-sectional area. In the , the pillars are strengthened by external bands of.
Pressure Vessel , Thin Wall Hoop Stress Calculator To calculate the Hoop Stress in a thin wall pressure vessel use the following calculator. Hence this stress is called longitudinal stress. It's the 1 st principal stress. What sort of ammo were you running? Thin-Walled Sphere Hoop Stress Formula Note: Used for vessels with inner radiuses larger than five times it's wall thickness; e. } is the hoop stress.