Issue 47

Z. Hu et alii, Frattura ed Integrità Strutturale, 47 (2019) 383-393; DOI: 10.3221/IGF-ESIS.47.28 386 (a) (b) Figure 2 : Adopted load spectra (a) CUS and (b) CDS [3]. Code Spectrum F a,max (kN) σ a ,max (MPa) R N f (Cycles) S2_VA CUS 34.2 520.1 -1 20975 S3_VA CUS 34.2 520.1 -1 21568 S4_VA CUS 18.4 279.8 -1 170155 S6_VA CUS 18.4 279.8 -1 182155 S7_VA CUS 25.6 389.3 -1 66703 S9_VA CUS 25.6 389.3 -1 61594 S10_VA CDS 65.8 1000.7 -1 8620 S12_VA CDS 49.3 749.7 -1 45620 S13_VA CUS 14.4 219.0 -1 391420 S14_VA CDS 65.8 1000.7 -1 7620 S15_VA CDS 49.3 749.7 -1 42620 S16_VA CDS 35.4 538.4 -1 179620 S17_VA CUS 14.4 219.0 -1 339763 S19_VA CDS 28.4 431.9 -1 367620 S20_VA CDS 35.4 538.4 -1 172620 S21_VA CDS 28.4 431.9 -1 376620 Table 2 : Summary of the experimental results generated by testing the notched specimens with root radius equal to 0.225 mm under VA fatigue loading [3]. Code Spectrum F a,max (kN) σ a,max (MPa) R N f (Cycles) I1_VA CUS 35.5 520.4 -1 37568 I2_VA CUS 29.5 432.4 -1 84463 I3_VA CUS 23.5 344.5 -1 170581 I4_VA CUS 35.5 520.4 -1 34044 I5_VA CUS 29.5 432.4 -1 83663 I6_VA CUS 23.5 344.5 -1 253927 I7_VA CDS 65.4 958.6 -1 10620 I8_VA CDS 48.5 710.9 -1 78620 I9_VA CDS 65.4 958.6 -1 11905 I10_VA CUS 20.5 300.5 -1 715859 I11_VA CDS 31.0 454.4 -1 732620 I12_VA CDS 31.0 454.4 -1 531620 I13_VA CDS 37.0 542.4 -1 285277 I14_VA CUS 20.5 300.5 -1 588009 I15_VA CDS 48.5 710.9 -1 76620 I16_VA CDS 37.0 542.4 -1 330620 Table 3 : Summary of the experimental results generated by testing the notched specimens with root radius equal to 1.2 mm under VA fatigue loading [3].