Assume that you are responsible for the design of a

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Reference no: EM13621398

Assume that you are responsible for the design of a wide-plate tension member built from a structural aluminum. The member has a center-crack defect (2a) and can be subjected to various service conditions. Information on the aluminum is as follows:

E = 10 %u2022 10 6 psi.

yield stress = 40 ksi.

da/dN = 0.66 x 10-8(deltaK) 25

Determine the propagation fatigue life for the following design conditions:

(a) Stress range = 20 ksi (0 to tension)

2a 0 = 0.5 in.

Kic = 50 ksi(in^1/2)

(b) Stress range = 20 ksi (0 to tension)

2a 0 = 2.0 in.

KIC = 50 ksi(in^1/2)

2a 0 = 0.1 in.

Kic = 50 ksi(in^1/2).

Reference no: EM13621398

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