Cálculo de los parámetros gobernantes de la singularidad en el vértice de grieta en superficies cilíndricas empleando geometría diferencial y correlación digital de imágenes 3D
- Alonso Camacho-Reyes 1
- Giancarlo Luis Gómez Gonzales 1
- José Manuel Vasco-Olmo 1
- Francisco Alberto Díaz 1
- 1 Universidad de Jaén, Departamento de Ingeniería Mecánica y Minera
ISSN: 2792-4246
Ano de publicación: 2023
Número: 5
Páxinas: 63-68
Tipo: Artigo
Outras publicacións en: Revista española de mecánica de la fractura
Resumo
The present work develops a methodology for crack tip fields characterization on non-planar surfaces. This approach combines 3D digital image correlation along with an extended formulation of flat classical crack tip field models based on differential geometry. That methodology has been validated using hollow thin-walled cylindrical specimens containing a through-thickness circumferential notch. Two materials were employed, an austenitic stainless steel (SS304L) and an aluminium alloy (AA2024T3). Results in terms of KI show a high level of agreement with numerical and theoretical values (<5%). In addition, a high level of agreement between experimental and fitted theoretical fields was found (<0.5%)