Strain energy in a tapered rod under torsion

AI Thread Summary
The discussion revolves around calculating strain energy in a tapered rod subjected to torsion. The user attempted to integrate the strain energy density function but found that all terms canceled out, leading to confusion about their calculations. Other participants requested to see the user's calculations for better understanding. The user later apologized for not posting their solution initially and made a final attempt to draw attention to their query. The thread highlights the challenges in solving complex mechanics problems involving strain energy.
theBEAST
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Homework Statement


7Q3sBk4.png


The Attempt at a Solution


http://imgur.com/3ZfjPxM.png

So if you look at my attempt, I integrated the strain energy density function and at the end everything cancels out. Does anyone know what I did wrong?
 
Last edited:
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I don't see your calculations. Please post them.
 
SteamKing said:
I don't see your calculations. Please post them.

Oops, sorry, I have posted my solution.
 
bump.
 
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