Find the crack growth per cycle for a steel plate where the crack gr – McqOptions

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1.	Find the crack growth per cycle for a steel plate where the crack growth equation is given by:-> da/dN = A(ΔK)pThe value of p=3, A= 6.9*10-18, and stress intensity factor variation is 1 kPa m1/2.
A.	6.9 m/cycle
B.	6.9 mm/cycle
C.	6.9 nm/cycle
D.	13.3 m/cycle
Answer» D. 13.3 m/cycle

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Find the crack growth per cycle for a steel plate where the crack growth equation is given by:-> da/dN = A(ΔK)pThe value of p=3, A= 6.9*10-18, and stress intensity factor variation is 1 kPa m1/2.