PSI - Issue 68

Robert Basan et al. / Procedia Structural Integrity 68 (2025) 782–787 R. Basan et al. / Structural Integrity Procedia 00 (2025) 000–000

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Table 1. Values of evaluation criteria E f ( s =3), ( E a ) total , ( E a ) Dset and Ē determined for aluminum alloys

Evaluation criteria

Uniform Material Law

Modified Park Song’s method

Medians Method

FKM Method

ALUMINUM ALLOYS

E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset Ē Ē Ē Ē E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset E f ( s =3) ( E a ) total ( E a ) Dset Ē Ē Ē Ē Ē

0,695 0,548 0,616 0,620 0,653 0,144 0,560 0,452 0,480 0,289 0,307 0,359 0,884 0,894 0,709 0,829 0,702 0,519 0,716 0,646 0,658 0,694 0,361 0,571 0,800 0,821 0,443 0,688 0,696 0,670 -0,155 0,403 0,750 0,903 0,401 0,685 0,368 -0,287 0,394 0,158

0,685 0,469 0,606 0,587 0,640 0,155 0,566 0,454 0,480 0,113 0,173 0,256 0,884 0,920 0,727 0,844 0,684 0,273 0,552 0,503 0,696 0,872 0,449 0,673 0,800 0,823 0,453 0,692 0,783 0,859 0,203 0,615 0,750 0,910 0,371 0,677 0,421 -0,420 0,500 0,167

0,710 0,434 0,572 0,572 0,613 0,019 0,487 0,373 0,720 0,000 0,145 0,288 0,884 0,823 0,701 0,802 0,702 0,494 0,714 0,637 0,443 0,310 -0,003 0,250 0,400 0,455 0,313 0,389 0,739 0,194 -0,649 0,095 0,167 0,697 0,176 0,347 0,316 0,110 -0,196 0,076

0,730 0,414 0,595 0,579 0,653 0,000 0,473 0,376 0,760 0,175 0,303 0,413 0,930 0,885 0,706 0,840 0,667 0,453 0,739 0,620 0,266 0,720 0,296 0,428 0,360 0,624 0,442 0,475 0,261 0,773 -0,189 0,282 0,000 0,755 0,380 0,378 0,316 -0,118 0,330 0,176

All strengths All fatigue lives (ALLS – ALLF) Low strength Low-cycle fatigue (LS – LCF) Low strength High-cycle fatigue (LS – HCF) High strength Low-cycle fatigue (HS – LCF) High strength High-cycle fatigue (HS – HCF) All strengths All fatigue lives (ALLS – ALLF) Low strength Low-cycle fatigue (LS – LCF) Low strength High-cycle fatigue (LS – HCF) High strength Low-cycle fatigue (HS – LCF) High strength High-cycle fatigue (HS – HCF) TITANIUM ALLOYS

Table 2. Values of evaluation criteria E f ( s =3), ( E a ) total , ( E a ) Dset and Ē determined for titanium alloys

Evaluation criteria

Uniform Material Law

Modified Park Song’s method

Medians Method

FKM Method

Ē

6. Discussion and conclusions With separate analyses, averaging of evaluation results was avoided, resulting in detailed and precise ratings of individual methods. Evaluation results provide detailed insight on the accuracy of the selected estimation methods and their applicability for the estimation of fatigue parameters of aluminum and titanium alloys in general as well as