Issue 35

Y. Matsuda et alii, Frattura ed Integrità Strutturale, 35 (2016) 1-10; DOI: 10.3221/IGF-ESIS.35.01

(a) Virgin materials

* The dotted line shows 30 times acceleration of fatigue crack growth rate for hydrogen-precharged specimen than the uncharged specimen.

(b) Torsional prestrained materials Figure 8 : Relations between fatigue crack growth rate and stress intensity factor range in S25C steel.  pre

: Specific angle of twist.

Figure 9 : Relation between fatigue crack growth acceleration rate in the presence of hydrogen and hydrogen content.  pre : Specific angle of twist.

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