Issue 38

T. Sawada et alii, Frattura ed Integrità Strutturale, 38 (2016) 92-98; DOI: 10.3221/IGF-ESIS.38.12 97 Figure 5 : Relationships between σ * and N f with various α in C-SGP. Figure 6 : Relationships between σ * and N f with various α in I-SGP. Figure 7 : A typical tensile fracture surface situations with scanning electron microscopes in C-SGP. (05 V f ) 0.1 1.0 0 1 10 100 1000 10000 100000 1000000 Equivalent effective stress σ * [ - ] Fracture cycles N f [cycles] 0.5Vf, α=1/0 0.5Vf, α=2/1 0.5Vf, α=1/1 0.5Vf, α=0/1 0.2Vf, α=1/0 0.2Vf, α=2/1 0.2Vf, α=1/1 0.2Vf, α=0/1 0.0Vf, α=1/0 0.0Vf, α=2/1 0.0Vf, α=1/1 0.0Vf, α=0/1 1 2 10 -1 1 3 10 4 1 5 1 6 10 0 Static strength ( σ *) n ･ N f = C n =26.2 0.1 1.0 0.1 1 10 100 1000 10000 100000 1000000 Equivalent effective stress σ * [ - ] Fracture cycles N f [cycles] 0.5Vf, α=0/1 0.5Vf, α=2/1 0.5Vf, α=1/1 0.5Vf, α=1/0 0.2Vf, α=0/1 0.2Vf, α=2/1 0.2Vf, α=1/1 0.2Vf, α=1/0 0.0Vf, α=0/1 0.0Vf, α=2/1 0.0Vf, α=1/1 0.0Vf, α=1/0 1 2 10 -1 10 3 1 4 10 5 1 6 10 0 ( σ *) n ･ N f = C n =26.3 Static strength