A grain boundary interaction model for microstructurally short fatigue cracks
Source abstract
Abstract
Abstract In this paper, we present a phenomenological model for simulating the effect of a grain boundary on crack growth along crystallographic planes. This model combines various geometrical features of the interaction between the crack plane and the grain boundary plane. The tilt and twist misorientations, calculated at a grain boundary, between a crack plane and a favorable plane in the next grain are incorporated into this model, as are the Schmid factor of the next grain and a critical crack transmission stress. A model calibration procedure is demonstrated based on experimental short fatigue crack growth data measured in a high performance wrought magnesium alloy. The proposed combined GB interaction model is shown to accurately predict the short fatigue crack growth retardation and arrest at grain boundaries in this alloy.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Magnesium Alloys: Properties and Applications · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
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