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} |