Fracture mechanism and toughness of a rolled magnesium alloy under dynamic loading

Abstract

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Mechanisms controlling fracture toughness of additively manufactured stainless steel 316L

“…In this work, J p has been used to estimate the crack energy release rate since previous studies have shown that the contribution of the elastic part (J e ) in the determination of J is negligible. Evaluation of J p is done as follows (Sreedhar et al 2021):…”

“…In the above equation, factor r (0 \ r \ 1) is taken as 0.4, which represents the location of the hinge point ahead of the crack tip. The critical amount of energy release rate (J IC ) has been taken as that value of J p from where crack initiation takes place in samples as reported in previous literature (Sreedhar et al 2021). Additionally, it has been reported in the previous studies that J IC is the term that remains independent of specimen geometry when compared to other terms that give a parameter to quantify fracture toughness (Fro ´meta et al 2020).…”