Question: ( b ) For the steel sheet containing an edge crack an edge crack ( K = 1 . 1 2 a ) , undera

(b) For the steel sheet containing an edge crack an edge crack (K =1.12 a), undera cyclic load which has a maximum stress of 200 MPa and a minimum stress of zero.The fatigue crack growth in this steel is given by134110( K)dNda= m cycle 1,whereK = Kmax Kmin. What will be the expected crack growth rate for the samemaximum and minimum stress when the crack has a length of 10 mm?

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