Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/4542
Título: Mode III interlaminar fracture of carbon/epoxy laminates using the edge crack torsion (ECT) test
Autor: Morais, A. B. de
Pereira, A. B.
Moura, M. F. S. F. de
Magalhães, A. G.
Palavras-chave: Polymer–matrix composites (PMCs)
Fracture toughness
Delamination
Finite element analysis (FEA)
Mode III
Data: 2009
Editora: Elsevier
Relatório da Série N.º: Composites Science and Technology; Vol. 69, Issue 5
Resumo: The mode III interlaminar fracture of carbon/epoxy laminates was evaluated with the edge crack torsion (ECT) test. Three-dimensional finite element analyses were performed in order to select two specimen geometries and an experimental data reduction scheme. Test results showed considerable non-linearity before the maximum load point and a significant R-curve effect. These features prevented an accurate definition of the initiation point. Nevertheless, analyses of non-linearity zones showed two likely initiation points corresponding to GIIIc values between 850 and 1100 J/m2 for both specimen geometries. Although any of these values is realistic, the range is too broad, thus showing the limitations of the ECT test and the need for further research.
Peer review: yes
URI: http://hdl.handle.net/10400.22/4542
ISSN: 0266-3538
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0266353809000049
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