A material is known to have a fully modified endurance strength of 60 kpsi, a yield strength of 120 kpsi, and an ultimate tensile strength of 150 kpsi. A beam made of this material subject to repeated bending stress that goes from 0 psi to 110 kpsi. Using Gerber as our failure criterion a. Does the beam have infinite life? b. What is the equivalent fully-reversed stress? c. How many cycles do we expect this beam to last?
A material is known to have a fully modified endurance strength of 60 kpsi, a yield strength of 120 kpsi, and an ultimate tensile strength of 150 kpsi. A beam made of this material subject to repeated bending stress that goes from 0 psi to 110 kpsi. Using Gerber as our failure criterion a. Does the beam have infinite life? b. What is the equivalent fully-reversed stress? c. How many cycles do we expect this beam to last?
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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</o:p>
A material is known to have a fully modified endurance strength of 60 kpsi, a yield strength of 120 kpsi, and an ultimate tensile strength of 150 kpsi. A beam made of this material subject to repeated bending stress that goes from 0 psi to 110 kpsi. Using Gerber as our failure criterion </o:p>
a. Does the beam have infinite life? </o:p>
b. What is the equivalent fully-reversed stress? </o:p>
c. How many cycles do we expect this beam to last?</o:p>
</o:p>
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