Why are the radial and the axial stress in a rotating thin ring null?

  • #1
Amaelle
310
54
Homework Statement:
look at the image
Relevant Equations:
centrifugal forces
Greetings, while studying the stress in the rotating thing ring
1646663324590.png


and find out the last equation that says
1646663393862.png

I would like to understand why?
Thank you!
 

Answers and Replies

  • #2
22,331
5,205
The radial and axial stresses acting on the surface of the ring are just the compressional stress from atmospheric pressure. Since the ring is very thin, these persist throughout the thickness of the ring.
 
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  • #3
Amaelle
310
54
The radial and axial stresses acting on the surface of the ring are just the compressional stress from atmospheric pressure. Since the ring is very thin, these persist throughout the thickness of the ring.
thanks a million!
 

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