A uniform hollow tube of outside and inside diameters D and d. is subjected to a torque T. Find the error in shear stress R1 and the error in the angle of twist R2 when applying Bredt-Batho theory compared to the general equation for circular shafts.
Given that the outer diameter D = 225 mm and the ratio d/D = 0.9, find;
the error in the average shear stress, R1: Answer field 1
%
the error in the angle of twist, R2: Answer field 2
%
Note:
Give your answers to two decimals.
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