Aufsatz in einer Fachzeitschrift
Accurate loading analyses of curved cracks under mixed-mode conditions applying the J-integral
Details zur Publikation
Autor(inn)en: | Judt, P.; Ricoeur, A. |
Verlag: | Springer Science Business Media |
Publikationsjahr: | 2013 |
Zeitschrift: | International Journal of Fracture |
Seitenbereich: | 53-66 |
Jahrgang/Band : | 182 |
Erste Seite: | 53 |
Letzte Seite: | 66 |
Seitenumfang: | 14 |
ISSN: | 0376-9429 |
DOI-Link der Erstveröffentlichung: |
Zusammenfassung, Abstract
In linear elastic fracture mechanics the path-independent J-integral is a loading quantity equivalent to stress intensity factors (SIF) or the energy release rate. Concerning plane crack problems, is a 2-dimensional vector with its components and . These two parameters can be related to the mode-I and mode-II SIFs and . To guarantee path-independence for curved crack geometries, an integration path along the crack faces must be considered. This paper deals with problems occurring at the numerical calculation of the J-integral in connection with the FE-method. Two new methods for accurately calculating values of for arbitrary cracks are presented.
In linear elastic fracture mechanics the path-independent J-integral is a loading quantity equivalent to stress intensity factors (SIF) or the energy release rate. Concerning plane crack problems, is a 2-dimensional vector with its components and . These two parameters can be related to the mode-I and mode-II SIFs and . To guarantee path-independence for curved crack geometries, an integration path along the crack faces must be considered. This paper deals with problems occurring at the numerical calculation of the J-integral in connection with the FE-method. Two new methods for accurately calculating values of for arbitrary cracks are presented.
Schlagwörter
Curved crack faces, J(2)-integral, J-integral, Mixed-mode
