Question: Problem 3 . [ 5 Marks ] A solid shaft of diameter D rotates and carries the minor shock loading as shown in figure. Calculate

Problem 3.[5 Marks]
A solid shaft of diameter D rotates
and carries the minor shock loading
as shown in figure. Calculate the
fatigue safety factor n and yielding
factor of safety ny for the shaft. Given:
D=75mm,Sy=550MPa,Su=660MPa.
The torque fluctuates 5% each way
from the mean value, and the shaft is to be machined from unnotched steel.
Problem 3 . [ 5 Marks ] A solid shaft of diameter

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