, (0) D(L) ,(2L) R Ro R L M L Fig. 7.9. Circular bar with hollow segment. Problem 7.3. Torsion of a circular bar with hollow segment The cylindrical bar shown in fig. 7.9 consists of two segments, clamped at point R and T. P1 (0) 1 (2L) = 0. The left segment of length L is a solid circular bar of radius Ro, while the right segment of length L is a hollow circular bar of inner radius R. A moment Q is applied at point M. (1) Determine the torque carried in each segment. (2) Determine the twist angle at point M. (3) Determine the equivalent torsional stiffness, H, at point M. defined as H=(L)/Q1. (4) Determine the maximum shear stress in each segment.