1.

Find the crack growth per cycle for a steel plate where the crack growth equation is given by:
-> da/dN = A( K)p

A. nThe value of p=3, A= 6.9*10<sup>-18</sup>, and stress intensity factor variation is 1 kPa m<sup>1/2</sup>.
B. 6.9 m/cycle
C. 6.9 mm/cycle
D. 6.9 nm/cycle
E. 13.3 m/cycle
Answer» D. 6.9 nm/cycle


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