If the maximum shear strain in the tube is measured as 460 x 10-6 rad, what is the shear strain y, (in radians) at the inner surface? rad If the maximum allowable rate of twist is 0.126°/m and the maximum shear strain is to be kept at 460 x 10-6 rad by adjusting the torque T, what is the minimum required outer radius (r, mint in mm)? mm

If the maximum shear strain in the tube is measured as 460 x 10-6 rad, what is the shear strain y, (in radians) at the inner surface? rad If the maximum allowable rate of twist is 0.126°/m and the maximum shear strain is to be kept at 460 x 10-6 rad by adjusting the torque T, what is the minimum required outer radius (r, mint in mm)? mm

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter9: Time, Temperature, And Mechanical Properties

Section: Chapter Questions

Problem 9.3P

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Question

A circular aluminum tube subjected to pure torsion by torque T (see figure) has an outer radius r, equal to 1.5 times the inner radius r,.
T
(a) If the maximum shear strain in the tube is measured as 460 x 10-° rad, what is the shear strain y, (in radians) at the inner surface?
rad
(b) If the maximum allowable rate of twist is 0.126°/m and the maximum shear strain is to be kept at 460 x 10-6 rad by adjusting the torque T, what is the minimum required outer radius (r..min' in mm)?
mm

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