Maximum Stress in a rotating Cylinder.

AI Thread Summary
To calculate the maximum stress in a rotating cylinder with a height and length of 0.89m and a mass of 1000kg at 14000 RPM, the centripetal force formula F=mv²/r is used. The maximum stress is expected to occur at the center of the cylinder. The user is uncertain about the appropriate area to use for stress calculation after determining the force. There is a suggestion to consider a very small area, such as 0.001*d, but clarity on the correct area for stress calculation is needed. Understanding the relationship between force, area, and stress is crucial for accurate results.
mk47k
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Homework Statement


A cylinder has a height and length of 0.89m. It's mass is known to be 1000kg. The cylinder is rotated at 14000 RPM. Calculate the Maximum stress in the cylinder.

2. The attempt at a solution
The maximum stress should occur at the center of the cylinder.
The centepietal force is equal to F=mv2 / r .

Now this is where I'm having problems. After I calculate the force what area should I divide it by to find the max stress?. Can I just assume the area to be really small such as 0.001*d ?
 
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