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What strength of the material is to be considered for design of a ductile component under cyclic load?

What strength of the material is to be considered for design of a ductile component under cyclic load? Correct Answer Endurance strength

For cyclic loading conditions endurance strength is considered. Endurance or fatigue limit can be defined as the magnitude of stress amplitude value at or below which no fatigue failure will occur, no matter how large the number of stress reversals takes place. In other words leading to an infinite life to the component or part being stressed. For most ferrous materials Endurance limit (Se) is set as the cyclic stress level that the material can sustain for 10 million cycles.

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