고체역학 (Beer) — Torsion: Problem 3.141

3.141 A 5.6-kN·m torque is applied to a hollow shaft having the cross section shown. Neglecting the effect of stress concentrations, determine the shearing stress at points $a$ and $b$. Given from Fig. P3.141: Outer height: $100\text{ mm}$ Outer width: $50\text{ mm}$ Outer radius of top corner arc: $50\text{ mm}$ Wall thickness at point $a$ (top arc): $5\text{ mm}$ Wall thickness at right side: $5\text{ mm}$ Wall thickness at bottom side (point $b$): $8\text{ mm}$ Applied Torque $T = 5.6\text{ kN}\cdot\text{m} = 5600\text{ N}\cdot\text{m}$