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4.1 Determine Maximum & Minimum Stresses
Maximum stress is the peak value of stress attained during a typical stress cycle.

Minimum stress is the least value of stress during the cycle.

Determine the maximum and minimum stresses for both direct and shear stresses.

Maximum & Minimum Direct Stresses:

To determine f max and f min, combine all the applied direct stresses, taking account of sign conventions.

Maximum & Minimum Shear Stresses:

To determine Tmax and Tmin, combine all the applied shear stresses.

See the Guide, Component Design - Shaft Strength and Rigidity, for more detail.