Mechanism-based estimations of the relationship between the critical distance and the grain size for quasi-brittle fracture

•A mechanism-based model for the critical distance L and grain size d relationships.•Non-local energy balance in the fracture process zone is the underlying mechanism.•L / d ratio is related to the Poisson’s ratio of the material. It is well known that the grain size has significant influence on the...

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Veröffentlicht in:	Engineering fracture mechanics 2021-06, Vol.250, p.107788, Article 107788
Hauptverfasser:	Sun, Yixiao, Xiang, Zhihai
Format:	Artikel
Sprache:	eng
Schlagworte:	Brittle fracture Brittle materials Critical distance Energy balance Fracture process zone Grain size Quasi-brittle fracture Size effects
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