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. A rectangular steel bar is subjected to a fluctuating load from 30 kN tension to...

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Mechanical Engineering

. A rectangular steel bar is subjected to a fluctuating loadfrom 30 kN tension to 30 kN compression. The bar is 30 mm wide and7 mm thick with a hole in the middle that is 4 mm in diameter. Findthe fatigue and yield factor of safety if the steel is cold-drawnAISI 1040. If the fatigue factor nf<1 and ny>1 then thatmeans that the system will fail at a finite number of cycles. Ifthat is the case, estimate the number of cycles to failure.

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