MARTIN, Eric; LEGUILLON, D.; SEVECEK, O.; BERMEJO, Raul

doi:10.1016/j.engfracmech.2018.06.021

MARTIN, Eric
Laboratoire des Composites Thermostructuraux [LCTS]

LEGUILLON, D.

SEVECEK, O.

Idioma

Article de revue

Este ítem está publicado en

Engineering Fracture Mechanics. 2018-10-01, vol. 201, p. 167-175

Resumen en inglés

The effect of small critical flaws on the strength of polycrystalline ceramic materials is analyzed with the help of an initiation criterion combining both a stress and an energy conditions. If the size of the defect is smaller than the characteristic material length, numerical predictions reveal that the defect (either sharp or blunt) has no effect on the strength. This result is in a good agreement with experimental results obtained from the strength measurements of ceramic materials with controlled flaws. Combining two fracture tests after introducing flaws with controlled sizes enables to identify the fracture parameters of the ceramic material.< Leer menos

Palabras clave en inglés

Crack nucleation

Coupled criterion

Finite fracture mechanics

Tensile strength

Ceramics

URI

https://oskar-bordeaux.fr/handle/20.500.12278/124043

DOI

http://dx.doi.org/10.1016/j.engfracmech.2018.06.021

Centros de investigación

Laboratoire des Composites Thermo Structuraux (LCTS) - UMR 5801

Ver/Abrir

Metadatos

Compartir este ítem

Licencia de uso del documento

Understanding the tensile strength of ceramics in the presence of small critical flaws

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave en inglés

URI

DOI

Centros de investigación