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The crack propagation rate with stress is given as ______ Where; -> da/dN is crack growth with each cycle -> C is constant -> σm is mean stress -> σa is alternating stress -> a is the crack length -> m and n are constant

The crack propagation rate with stress is given as ______ Where; -> da/dN is crack growth with each cycle -> C is constant -> σm is mean stress -> σa is alternating stress -> a is the crack length -> m and n are constant Correct Answer da/dN = C σam an

The crack growth with each cycle is given by the alternating stress: -> da/dN = C σam an The value of the m varies from 2 to 4, and the value of n varies from 1 to 2. So, if the alternating stress is high, the crack growth with each cycle will be more and vice versa.

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