Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Publicaciones del Grupo Español de Fractura

Listado de Publicaciones

Todas estas publicaciones se ofrecen de forma gratuita y son de libre difusión. También puedes descargar las actas completas».

RESISTANCE CURVES IN THE TENSILE AND COMPRESSIVE LONGITUDINAL FAILURE OF COMPOSITES

Pedro P. Camanho  Giuseppe Catalanotti  Carlos G. Dávila  Claudio S. Lopes  Miguel A. Bessa  José C. Xavier   

Anales de la Mecánica de la Fractura, nº 27 . 2010 . Pág. -
Ver (.pdf): 16

Resumen: This paper presents a new methodology to measure the crack resistance curves associated with fiber-dominated failure modes in polymer-matrix composites. These crack resistance curves not only characterize the fracture toughness of the material, but are also the basis for the identification of the parameters of the softening laws used in the analytical and numerical simulation of fracture in composite materials. The method proposed is based on the identification of the crack tip location by the use of Digital Image Correlation and the calculation of the J-integral directly from the test data using a simple expression derived for cross-ply composite laminates. It is shown that the results obtained using the proposed methodology yield crack resistance curves similar to those obtained using FEM-based methods in compact tension carbon-epoxy specimens. However, it is also shown that the Digital Image Correlation based technique can be used to extract crack resistance curves in compact compression tests for which FEM-based techniques are inadequate.

LocalizaciónPorto

DEMec, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal-
DEMec, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal-
NASA Langley Research Center, Hampon VA, USA
DEMec, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal-
Universidade de Trás-os-Montes e Alto Douro, Portugal


Enlaces directos

Últimas noticias

Contacto

Información general
info@gef.es

Administración
secretaria@gef.es

Cuotas y recibos
socios@gef.es