Finding the shear stress and angle of twist in hollow shaft

AI Thread Summary
To calculate the shear stress and angle of twist in a hollow shaft made of a titanium alloy, specific material properties such as the shear modulus are required. The shaft has a wall thickness of 3.2mm and an inner diameter of 20mm, with a torque of 232 Nmm applied. The discussion highlights confusion over the material properties, as an attached image indicates the shaft is steel, while the question pertains to titanium. Without the necessary material properties, accurate calculations for shear stress and angle of twist cannot be performed. Clarification on the material specifications is essential for solving the problem effectively.
shannonxtreme
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I have a hollow shaft made of a titanium alloy, Shear Modulus "G". The shaft has a wall thickness of 3.2mm and an inner diameter of 20mm. The shaft looks as show in the attached image. A torque T of 232 Nmm is applied to the tube. How do I :
a) Find out the shear stress in both sections of the tube
b) Find the angle of twist of the entire component?
1425465552016686580234.jpg
 
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The attached image says the shaft is made from steel.

You want to find the shear stress and angle of twist for a similar shaft made on unknown titanium alloy with no specified material properties.

Exactly how do you expect to make this calculation without more information?
 
For this problem, what is the equation for the shear strain on a plane of constant z in the θ direction?

Chet
 
SteamKing said:
The attached image says the shaft is made from steel.

You want to find the shear stress and angle of twist for a similar shaft made on unknown titanium alloy with no specified material properties.

Exactly how do you expect to make this calculation without more information?
No, the image is for Part 1, Part 2 shown under it is unrelated. The Part 1 question simply states titanium, and expects me to find out what the properties are.
 
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