The same torque is applied to two tubes with identical metal sheets, determine the ratio of circle/ square of the shear stresses. Given: r = 18 mm, S = 18 mm, and t = 2.96 mm.
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Narayan H.
The symmetric tube is made from a high-strength steel, having the mean dimensions shown and a thickness of $5 \mathrm{mm} .$ If it is subjected to a torque of $T=40 \mathrm{N} \cdot \mathrm{m}$ determine the average shear stress developed at points $A$ and $B$. Indicate the shear stress on volume elements located at these points.
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