Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/95766
Autor(es): | Luís M. P. Durão Marcelo F. S. F. de Moura António T. Marques |
Título: | Drilling Process Simulation on Composite Laminates |
Data de publicação: | 2007 |
Resumo: | Despite of the fact that their physical properties made them an attractive family of materials, composites machining can cause several damages like delamination, fibre pull-out, thermal degradation and others. It is possible to derive the axial thrust force during drilling that causes delamination onset, using analytical models based on LEFM. In this work, a finite element model considering solid elements of ABAQUS® software library and own interface finite elements including a cohesive damage model was developed in order to simulate thrust forces and delamination onset during drilling. Results of thrust force for delamination onset are compared with analytical models. Three different configurations of fibre reinforced laminates are considered: carbon/epoxy laminates, glass/epoxy laminates and hybrid laminates. Values of interlaminar fracture toughness in mode I were obtained in DCB tests for all configurations. Results show that a hybrid interface consisting of carbon/epoxy and glass/epoxy plies has interlaminar fracture toughness in mode I similar to a carbon/epoxy interface. Consequences in terms of critical thrust force for delamination onset and propagation are discussed. |
Assunto: | Outras ciências da engenharia e tecnologias Other engineering and technologies |
Áreas do conhecimento: | Ciências da engenharia e tecnologias::Outras ciências da engenharia e tecnologias Engineering and technology::Other engineering and technologies |
URI: | https://hdl.handle.net/10216/95766 |
Fonte: | ECCOMAS Thematic Conference Mechanical Response of Composites - Composites 2007 |
Tipo de Documento: | Artigo em Livro de Atas de Conferência Internacional |
Condições de Acesso: | restrictedAccess |
Aparece nas coleções: | FEUP - Artigo em Livro de Atas de Conferência Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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62890.pdf Restricted Access | 278.92 kB | Adobe PDF | Request a copy from the Author(s) |
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