# Tangential stresses in rotating ring

**URL:** <https://forums.speedlife.net/t/tangential-stresses-in-rotating-ring/243058>\
**Category:** Shift518 Automotive\
**Created:** [March 24, 2009, 10:28pm UTC](https://forums.speedlife.net/t/tangential-stresses-in-rotating-ring/243058 "2009-03-24T22:28:55Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![OsoiNA6](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/osoina6/32/6301_2.png) [@OsoiNA6](https://forums.speedlife.net/u/OsoiNA6)\
**Post date:** [March 26, 2009, 6:23am UTC](https://forums.speedlife.net/t/tangential-stresses-in-rotating-ring/243058/17 "2009-03-26T06:23:33Z")

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> [@Remove tint? Can I do it?](https://forums.speedlife.net/t/remove-tint-can-i-do-it/16201/7):
>
> Sigma is given, it is 29,442,600 psi.
> 
> Steel is far from mild. Actually is the strongest stainless steel in existence.
> 
> I am solving for omega.

Thanks for the explanation… It seemed with the order of your calculation you arrived at that sigma at the bottom. I understand now that it’s part of the calculation parameters.

Are you solving for omega to find some sort of limiting angular velocity that will keep you under the allowable stress for your material?

Dunno if this will show up in the link, but the rules of thumb book for Mechanical Engineers book from Google Books has some useful formulas for the disk calculation:

> **[Rules of Thumb for Mechanical Engineers](https://books.google.com/books?id=yNHuleaCMOkC&pg=PA312&lpg=PA312&dq=tangential%2Bstress%2Bequation%2Brotating%2Bdisc&source=bl&ots=p_1C0sdlWa&sig=NPxw8hcLhu0FL9abr7vAFBSYiTY&hl=en&ei=nQ7LSfvcB9_elQeYleDMCQ&sa=X&oi=book_result&ct=result)**
>
> Save time with this collection of straightforward, common-sense techniques that provide quick, accurate solutions to your engineering problems. Rules of Thumb for Mechanical Engineers assembles hundreds of shortcuts, calculations, practical "how-to"...

See page 311 (I think the link above brings you to it)

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