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Question 8.3: A structural member is subjected to a series of cyclic loads...

A structural member is subjected to a series of cyclic loads, which produce different levels of alternating stress as listed in Table Ex. 8.3. Determine whether or not a fatigue failure occurs.

Table Ex. 8.3
Loading 1 2 3 4 5
No. of cycles 10^{5} 2 \times 10^{4} 10^{5} 1.5 \times 10^{6} 10^{7}
No. of cycles to failure 3 \times 10^{6} 10^{5} 2 \times 10^{6} 10^{7} 1.5 \times 10^{8}
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