5. 16 pts. Compute the length of critical surface edge crack in inches if fatigue life is 9.0 \times 10^6 cycles, and maximum tensile stress is 24 ksi. A = 4.0 \times 10^{-13} and m = 3.5 in ksi and in. units. Initial crack (edge) is 0.120 in. Y = 1.15.
Added by Steven W.
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First, we need to calculate the stress intensity factor (K) using the given equation: K = Y * (A * Δσ * √π * a)^m where: - Y is the geometric correction factor (given as 1.15) - A is the material constant (given as 4.0 x 10^-13) - Δσ is the stress range Show more…
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