Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/4187
Título: Numerical prediction of delamination onset in carbon/epoxy composites drilling
Autor: Durão, Luís M.
Moura, M. F. S. F. de
Marques, A. T.
Palavras-chave: Delamination
Finite element
Carbon fibre laminates
Data: 2008
Editora: Elsevier
Relatório da Série N.º: Engineering Fracture Mechanics; Vol. 75, Issue 9
Resumo: Despite the fact that their physical properties make them an attractive family of materials, composites machining can cause several damage modes such as delamination, fibre pull-out, thermal degradation, and others. Minimization of axial thrust force during drilling reduces the probability of delamination onset, as it has been demonstrated by analytical models based on linear elastic fracture mechanics (LEFM). A finite element model considering solid elements of the ABAQUS® software library and interface elements including a cohesive damage model was developed in order to simulate thrust forces and delamination onset during drilling. Thrust force results for delamination onset are compared with existing analytical models.
Peer review: yes
URI: http://hdl.handle.net/10400.22/4187
ISSN: 0013-7944
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0013794407001191
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