Q2 A solid circular bar ABC consists of two segments, as shown in figure 2. One segment has diameter di 50 mm and length LI = 1.42 m; the other segment has diameter d2 = 46 mm and length L2 = 1.1 m. What is the allowable torque Tallow if the shear stress is not to exceed 30 MPa and angle of twist between the ends of bar is not to exceed 1.2º ? (Assume G = 75 GPa) %3D %3D %3D A B Fig 2: Solid circular bar ABC

Q2 A solid circular bar ABC consists of two segments, as shown in figure 2. One segment has diameter di 50 mm and length LI = 1.42 m; the other segment has diameter d2 = 46 mm and length L2 = 1.1 m. What is the allowable torque Tallow if the shear stress is not to exceed 30 MPa and angle of twist between the ends of bar is not to exceed 1.2º ? (Assume G = 75 GPa) %3D %3D %3D A B Fig 2: Solid circular bar ABC

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.8.8P: A solid circulai' aluminum bar AB is fixed at both ends and loaded by a uniformly distributed torque...

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Concept explainers

Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.

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Q2 A solid circular bar ABC consists of two segments, as shown in figure 2. One segment has
diameter di = 50 mm and length L1 = 1.42 m; the other segment has diameter d2 = 46 mm and
length L2 = 1.1 m. What is the allowable torque Tallow if the shear stress is not to exceed 30
MPa and angle of twist between the ends of bar is not to exceed 1.2º ? (Assume G = 75 GPa)
Fig 2: Solid circular bar ABC

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