## Solution to Problem 569 | Horizontal Shearing Stress

**Problem 569**

Show that the maximum shearing stress in a beam having a thin-walled tubular section of net area A is τ = 2V / A.

**Problem 569**

Show that the maximum shearing stress in a beam having a thin-walled tubular section of net area A is τ = 2V / A.

**Problem 339**

A torque of 450 lb·ft is applied to the square section shown in Fig. P-339. Determine the smallest permissible dimension a if the shearing stress is limited to 6000 psi.

**Problem 338**

A tube 0.10 in. thick has an elliptical shape shown in Fig. P-338. What torque will cause a shearing stress of 8000 psi?

**Problem 337**

A torque of 600 N·m is applied to the rectangular section shown in Fig. P-337. Determine the wall thickness t so as not to exceed a shear stress of 80 MPa. What is the shear stress in the short sides? Neglect stress concentration at the corners.