The effect of defects on fatigue performance of AM metals is nowadays the focus of several technical papers, and the Kitagawa-Takahashi diagram is usually employed in order to establish a relationship between fatigue limit and defect size. In such a context, the present paper aims to investigate the defect effect on the fatigue limits of an AM aluminium alloy by exploiting a novel analytical procedure. Such a procedure is based on the joint application of: (i) the Kitagawa-Takahashi diagram, formulated by employing the modified El-Haddad model, for fatigue limit calculations; (ii) the fatigue criterion by Carpinteri et al., based on the critical plane approach, for fatigue strength assessment and lifetime estimation.
A novel procedure for the fatigue behaviour assessment of AM metals with defects / Ronchei, C.; Carpinteri, A.; Scorza, D.; Zanichelli, A.; Vantadori, S.. - In: PROCEDIA STRUCTURAL INTEGRITY. - ISSN 2452-3216. - 53:(2024), pp. 112-118. [10.1016/j.prostr.2024.01.014]
A novel procedure for the fatigue behaviour assessment of AM metals with defects
Ronchei C.;Carpinteri A.;Scorza D.;Zanichelli A.;Vantadori S.
2024-01-01
Abstract
The effect of defects on fatigue performance of AM metals is nowadays the focus of several technical papers, and the Kitagawa-Takahashi diagram is usually employed in order to establish a relationship between fatigue limit and defect size. In such a context, the present paper aims to investigate the defect effect on the fatigue limits of an AM aluminium alloy by exploiting a novel analytical procedure. Such a procedure is based on the joint application of: (i) the Kitagawa-Takahashi diagram, formulated by employing the modified El-Haddad model, for fatigue limit calculations; (ii) the fatigue criterion by Carpinteri et al., based on the critical plane approach, for fatigue strength assessment and lifetime estimation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
