The principal stresses at a point in a criticalsection of a machine component are o, = 60 MPa,0, = 5 MPa and o,of the component, the tensile yield strength is-40 MPa. For the materialo, = 200 MPa. According to the maximum shear6y%3Dstress theory, the factor of safety is(а) 1.67(b) 2.00(c) 3.60(d) 4.00

Answered: The principal stresses at a point in a…

The principal stresses at a point in a critic section of a machine component are o, = 60 MF %3D = 5 MPa and o = -40 MPa. For the mater %3D of the component, the tensile yield strength

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 3.5.8P: A solid circular bar of steel (G = 78 GPa) transmits a torque T = 360 N - m. The allowable stresses...

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Question

The principal stresses at a point in a critical
section of a machine component are o, = 60 MPa,
0, = 5 MPa and o,
of the component, the tensile yield strength is
-40 MPa. For the material
o, = 200 MPa. According to the maximum shear
6y
%3D
stress theory, the factor of safety is
(а) 1.67
(b) 2.00
(c) 3.60
(d) 4.00

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