Answered: An aluminium bar is in the form of an…

An aluminium bar is in the form of an equilateral triangle 30 mm on a side. What torque is required to cause an angle of twist in the bar of 0-80 deg over a length of 2.6 m ? G = 27 GPa.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.2.4P: Repeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.

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Concept explainers

Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.

Question

An aluminium bar is in the form of an equilateral
triangle 30 mm on a side. What torque is required to cause an angle of
twist in the bar of 0.80 deg over a length of 2.6 m ? G = 27 GPa.

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