Part 1) Find the magnitude of shear and normal stresses from the loads shown. The cross section of the drill bit at H is a solid circle of 8mm diameter. Part 2) Draw the arrows representing the forces on element H that result from the local stresses calculated. Be sure that the arrows point in the correct direction to represent positive or negative forces. Part 3) Write the stress state in the form of a tensor. Units are MPa Part 4) What is the maximum shear stress experienced by H? What is the maximum normal stress? What is the minimum normal stress?

Part 1) Find the magnitude of shear and normal stresses from the loads shown. The cross section of the drill bit at H is a solid circle of 8mm diameter. Part 2) Draw the arrows representing the forces on element H that result from the local stresses calculated. Be sure that the arrows point in the correct direction to represent positive or negative forces. Part 3) Write the stress state in the form of a tensor. Units are MPa Part 4) What is the maximum shear stress experienced by H? What is the maximum normal stress? What is the minimum normal stress?

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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Question

Part 1) Find the magnitude of shear and normal stresses from the loads
shown. The cross section of the drill bit at H is a solid circle of 8mm
diameter.
Part 2) Draw the arrows representing the forces on element H that
result from the local stresses calculated. Be sure that the arrows point
in the correct direction to represent positive or negative forces.
Part 3) Write the stress state in the form of a tensor. Units are MPa
Part 4) What is the maximum shear stress experienced by H? What is
the maximum normal stress? What is the minimum normal stress?

N = 400 N
T= 1.8 N-m
In order to drill an 8mm hole into a
block of steel, a Normal Load of
400N and Torque of 1.8 N-m must
be applied to a drill bit. The drill bit
H
D = 8mm
has a diameter of 8mm and is a solid
cylinder at point H. Write the stress
state for the element H pictured
in the diagram.

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