Strain energy in a tapered rod under torsion

In summary, strain energy in a tapered rod under torsion refers to the potential energy stored in the rod due to twisting forces, and is calculated using the equation U = (1/2)Gθ^2. This energy is affected by factors such as material properties, applied force, and angle of twist, and the tapered shape of the rod can impact its distribution. Studying this phenomenon is important for engineering applications, as it helps determine the strength and behavior of structural components.
  • #1
theBEAST
364
0

Homework Statement


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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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  • #2
I don't see your calculations. Please post them.
 
  • #3
SteamKing said:
I don't see your calculations. Please post them.

Oops, sorry, I have posted my solution.
 
  • #4
bump.
 
  • #5
last bump.
 

1. What is strain energy in a tapered rod under torsion?

Strain energy in a tapered rod under torsion refers to the potential energy stored in the rod when it is subjected to twisting forces. This energy is stored in the form of elastic deformation of the rod's material.

2. How is strain energy calculated in a tapered rod under torsion?

The strain energy in a tapered rod under torsion is calculated using the equation U = (1/2)Gθ^2, where U is the strain energy, G is the shear modulus of the material, and θ is the angle of twist.

3. What factors affect the strain energy in a tapered rod under torsion?

The strain energy in a tapered rod under torsion is affected by the material properties of the rod, such as its shear modulus and cross-sectional area, as well as the magnitude of the applied twisting force and the angle of twist.

4. How does the tapered shape of the rod impact the strain energy in torsion?

The tapered shape of the rod can impact the strain energy in torsion by changing the distribution of stress and strain along the length of the rod. This can result in varying levels of strain energy accumulation at different points along the rod.

5. What is the significance of studying strain energy in a tapered rod under torsion?

Studying strain energy in a tapered rod under torsion is important for understanding the behavior and strength of structural components in various engineering applications, such as in the design of machine parts, bridges, and other load-bearing structures.

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