Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/4203
Título: Interlaminar fracture characterization of a carbon-epoxy composite in pure mode II
Autor: Campilho, Raul
Moura, M. F. S. F. de
Pinto, A. M. G.
Ramantani, Dimitra A.
Palavras-chave: Cohesive damage model
Finite element method
Fracture characterization
Endnotched flexure
Data: 2010
Editora: Trans Tech Publications
Relatório da Série N.º: Materials Science Forum; Vol. 636 - 637
Resumo: The interlaminar fracture toughness in pure mode II (GIIc) of a Carbon-Fibre Reinforced Plastic (CFRP) composite is characterized experimentally and numerically in this work, using the End-Notched Flexure (ENF) fracture characterization test. The value of GIIc was extracted by a new data reduction scheme avoiding the crack length measurement, named Compliance-Based Beam Method (CBBM). This method eliminates the crack measurement errors, which can be non-negligible, and reflect on the accuracy of the fracture energy calculations. Moreover, it accounts for the Fracture Process Zone (FPZ) effects. A numerical study using the Finite Element Method (FEM) and a triangular cohesive damage model, implemented within interface finite elements and based on the indirect use of Fracture Mechanics, was performed to evaluate the suitability of the CBBM to obtain GIIc. This was performed comparing the input values of GIIc in the numerical models with the ones resulting from the application of the CBBM to the numerical load-displacement (P-) curve. In this numerical study, the Compliance Calibration Method (CCM) was also used to extract GIIc, for comparison purposes.
Peer review: yes
URI: http://hdl.handle.net/10400.22/4203
ISSN: 0255-5476
Versão do Editor: http://www.scientific.net/MSF.636-637.1518
Aparece nas colecções:ISEP – CIDEM – Artigos

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