A 7/8 in. diameter shaft made out of ductile material is used to transmit power from motor. The maximum allowable shear stress, τallow = 14.5 ksi is used for this shaft, and the shaft rotates at 200 rpm. a. Find out the polar moment of inertia of the shaft. b. Find out the maximum Torque, T is being applied to the shaft
A 7/8 in. diameter shaft made out of ductile material is used to transmit power from
motor. The maximum allowable shear stress, τallow = 14.5 ksi is used for this shaft, and
the shaft rotates at 200 rpm.
a. Find out the polar moment of inertia of the shaft.
b. Find out the maximum Torque, T is being applied to the shaft.
c. What would be the power of the motor?
d. What are the general state of stresses for this application? Is it plane stress? Please
show the general stress information, choosing any point in the shaft and zooming
in that point.
e. If the shaft fails, how will it fail? Show it by a free hand sketch.
f. What will be the maximum in-Plane shear stress, and its associated average normal
stress? Please use the analytical equations.
ONLY D, E, & F PLEASE
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