Example Question

The thin-walled tube AB is fixed at end A with a torque applied at the free end B. Determine the average shear stress developed at points C and D. Also calculate the angle of twist Φ at B.

Click below to show answer. X

Step 1:
Calculate mean enclosed area A_m

Step 1:
Calculate mean enclosed area A_m

Thin-Walled Tubes with Closed Cross-Sections solution step 1

Step 2:
Calculate τ_avg at points C and D using formula

Step 2:
Calculate τ_avg at points C and D using formula

Thin-Walled Tubes with Closed Cross-Sections solution step 2

Step 3:
Calculate Φ_B using formula

Step 3:
Calculate Φ_B using formula

Thin-Walled Tubes with Closed Cross-Sections solution step 3

Useful formula:

Useful formula:

Thin-Walled Tubes with Closed Cross-Sections formula

Now that you've mastered this question, you can try Question 1.

Example Question

Example Question

Step 1: Calculate mean enclosed area Am Step 1: Calculate mean enclosed area Am

Step 2: Calculate τavg at points C and D using formula Step 2: Calculate τavg at points C and D using formula

Step 3: Calculate ΦB using formula Step 3: Calculate ΦB using formula

Useful formula: Useful formula:

Step 1:
Calculate mean enclosed area A_m

Step 1:
Calculate mean enclosed area A_m

Step 2:
Calculate τ_avg at points C and D using formula

Step 2:
Calculate τ_avg at points C and D using formula

Step 3:
Calculate Φ_B using formula

Step 3:
Calculate Φ_B using formula

Useful formula:

Useful formula: