Physics Help Forum shear stress fomula by using cylindrical coordinates

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 Mar 18th 2013, 06:42 PM #1 Junior Member   Join Date: Feb 2013 Posts: 17 shear stress fomula by using cylindrical coordinates Dear all： Please help me to prove the shear stress fomula by using Cylindrical coordinates. (See URL. below) http://i.imgur.com/G9uJHTj.jpg Thank for any help!! Matthew Last edited by tracker890; Mar 19th 2013 at 03:56 AM. Reason: Sentence to modify
Mar 19th 2013, 08:28 AM   #2
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 Originally Posted by tracker890 Dear all： Please help me to prove the shear stress fomula by using Cylindrical coordinates. (See URL. below) http://i.imgur.com/G9uJHTj.jpg Thank for any help!! Matthew
We really need to see your work!

What is the starting point for your derivation - is it

Is "L" the Length of the pipe (m)?
Can you specify the UNITS of the various quantities?
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DrPhil (not the TV guy)
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 Mar 19th 2013, 09:43 AM #3 Junior Member   Join Date: Feb 2013 Posts: 17 Dear DrPhil all solution(See URL. below) http://i.imgur.com/gws5tYj.jpg http://i.imgur.com/8xooRR7.jpg but does not express the shear stress formula!!! Thank u !! Matthew Last edited by tracker890; Mar 20th 2013 at 03:12 AM. Reason: Sentence to modify

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