Chapter A6.6 example 2 SECTION A 6.6 EXAMPLE 2
Use the formulas based on the theory of elasticity to find the maximum shear stress and angle of twist per unit length of a bar having the cross sectional shape shown below.



First, need to find the b/t ratio. Because this is an extruded section, the lengths 'b' are found this way

Since b/t is greater than 10, alpha and beta are 1/3. Therefore, maximum shear stress is

Angle of Twist per unit length is

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