Difference Between Thick And Thin Cylinders 5b4n5c

DIFFERENCE BETWEEN THICK AND THIN CYLINDERS: If the thickness of the cylinder is very small compared to the diameter/radius, the stresses in radial direction become negligible(but not zero). It is widely accepted that the radial stresses are not significant as long as the radius of the cylinder is 10 times the thickness. So if r/t > 10 it can be treated as a thin walled cylinder but if r/t < 10 it has to be treated as a thick walled cylinder.

INDUSTRIAL APPLICATION OF THICK AND THIN CYLINDER: There is a wide scope of applications of thick cylinders in industries. This is more like an open ended question for which the possibilities of answers and opinions are in abundant. Please try to narrow down your question by mentioning either the type of cylinder or type of industry and you will receive the perfect answer. However, to help you here is the generic answer: A thin-walled hollow cylinder is made from fiber-reinforced plastics material, the cylinder wall of which is composed of at least one layer having fibers with at least one oriented direction of the fibers, and the total wall thickness dtot lying in the range from 10 to 1000 μm, and the ratio d to/D being≦0.0025. The oriented direction(s) of the fibers are selected depending on the intended final application. Examples include, inter alia, multi-layer laminates made from carbon/epoxy, used for the production of a cylinder of this nature, having at least one layer with an oriented direction of the fibers which is parallel or perpendicular to the longitudinal axis of the cylinder.

ANALYZE THICK AND THIN CYLINDER THROUGH STRESS-STRAIN DIAGRAM: Stresses in thick cylinders For thick cylinders such as guns, pipes to hydraulic presses, high pressure hydraulic pipes the wall thickness is relatively large and the stress variation across the thickness is also significant. In this situation the approach made in the previous section is not suitable. The problem may be solved by considering an axis symmetry about z-axis and solving the differential equations of stress equilibrium in polar co-ordinates.

DIFFERENCE BETWEEN OPEN AND CLOSED CYLINDER: The closed end thin cylinder can be the sum of 1. open ended thin cylinder 2. two thin disks So, if you wanted to find the moment of inertia of the closed end cylinder, you could add the moments of

inertia of the thin cylinder shell with two disks. The relative mass of the disk (end caps) are important -- or you will need the length of the cylinder if the shell has a uniform thickness.