Determine the number of cycles to failure

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Reference no: EM131376646

Consider a polished, unnotched specimen made 300M alloy forging loaded in the longitudinal direction (see page MH2-60). It is subjected to a fatigue stress cycle that ranges between minimum and maximum stress levels of 50 ksi and 150 ksi, respectively. Determine the number of cycles to failure according to the equivalent stress model. Repeat this calculation if the maximum stress remains unchanged while the minimum stress is reduced to 25 ksi.

Reference no: EM131376646

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