Stress Concentration Factors (SCFs) for stepped shaft

- - Stress Concentration Factors (SCFs) - -
In geometrical transitions there will be an concentration of the stress. In some simple geometries like the shaft below, it is possible to derive factors based on the geometrical relationships. For more complex geometrical shapes a FEA might be necessary.

Main impact of the stress concentrations are that they reduce the fatigue life of the structure.

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