The depth 2b of a rectangular cross section torsion bar is 38.1 mm (Figure 6.15). Determin...

The depth 2b of a rectangular cross section torsion bar is 38.1 mm (Figure 6.15). Determine the required width 2h so that the maximum shear stress produced in it is the same as that in a cylindrical bar 51 mm in diameter, with both bars being subjected to the same twisting moment.

FIGURE 6.15