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Related to Brittle fracture: fatigue fracture, Ductile fracture
See: hiatus, rend, rift, split
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In the case when both plastic deformation and brittle fracture take place in approximately equal proportions the AE [U.sup.*.sub.RMS] either increase, Figs.
6) changed to a brittle fracture, which was accompanied with a flexural strength decrease (Fig.
Under these conditions, a critical flaw could become an uncontrolled long running brittle fracture under normal operating conditions.
Fracture mechanics provides a method to quantitatively measure a material's ability to resist brittle fracture. The concept of applying fracture mechanics for pressure vessels, and the data that are needed to make it a viable assessment method for determining the serviceability of a pressure component, were extensively discussed in a 1967 publication by the Oak Ridge National Laboratory.
The fracture surface of the horizontal specimen shows clear plastic deformation, while the fracture surface of the vertical specimen shows no plastic deformation but reveals bright crystallization indicating a brittle fracture. Based on the analysis of the fracture morphology we conclude that the horizontal specimen has superior fracture mechanical properties compared to the vertical specimen because of the oriented molecular chains.
In addition to requiring more time, lower levels of applied stress result in brittle fracture, whereas higher levels of stress can produce ductile failure.
In addition to the above problem, the above laboratory tests do not always generate brittle fracture in a way similar to that observed in service.
The material-removal mechanisms are usually classified into two categories: brittle fracture and plastic deformations.
In Weld B, sample 2, the team found that weld failure via ductile mechanism, in lieu of brittle fracture common to adjoin ing material could be the result of how the cold weld was formed.
Garzke and his collaborators concluded that the sinking was caused by failure of the ship's riveted hull joints upon impact, and by thermally induced brittle fracture of the steel hull plates.
In the present paper the brittle fracture of fibres in continuous fibre reinforced metal matrix composites subjected to uniaxial tension is predicted using the approach proposed in [1].