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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Suppose the fatigue data shown in the Question 4 were taken fi'om bending-rotation tests, and
that a rod of the same metal alloy is used as a shaft that rotates at an average rotational speed
of 300 revolutitms per minute. Determine the stress amplitude in the shaft if it has a product
life of 4 years.
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