A hook is fashioned by bending a 8.0 mm wide metal bar into the shape shown. A force of 85 N is applied at D. The strength of the metal limits both the shear stress and the bending stress to 70 MPa. Determine the dimension 'a' of the bar such that the strength is not exceeded. Your solution must demonstrate that the bar is safe for both bending stress and transverse shear stress. 120 mm 50 mm F 40 mm

A hook is fashioned by bending a 8.0 mm wide metal bar into the shape shown. A force of 85 N is applied at D. The strength of the metal limits both the shear stress and the bending stress to 70 MPa. Determine the dimension 'a' of the bar such that the strength is not exceeded. Your solution must demonstrate that the bar is safe for both bending stress and transverse shear stress. 120 mm 50 mm F 40 mm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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.

Question

A hook is fashioned by bending a 8.0 mm wide metal bar into the shape shown. A
force of 85 N is applied at D. The strength of the metal limits both the shear stress
and the bending stress to 70 MPa. Determine the dimension 'a' of the bar such that
the strength is not exceeded. Your solution must demonstrate that the bar is safe for
both bending stress and transverse shear stress.
120 mm
50 mm
D
b
40 mm

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