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Atlas de fractographie des composites ArchiMer
Jeannetaud, P; Krawczak, P; Bequignat, R; Pabiot, J; Bord, C; Vancon, M; Bard, M; Lemascon, A.
Fractography deals with the microscopic study of the fracture surfaces of a structure in order to define the initiation and the propagation of the damage and then the failure history of the structure (stress, environment ...). Today, we are able to identify the causes of the failure of metallic parts based on pictures of typical fracture surfaces, but there is nothing similar for composite materials. However, the increasing amount of literature devoted to fractography, as well as the constitution of "brain storming" groups on a European level confirm scientific interest in this fracture analysis mode that permits a better understanding of the existing relationship between the material's microscopic structure and its macroscopic mechanical behaviour. In...
Tipo: Text Palavras-chave: Fractures; Damage; Failures; Ship technology; Composite materials; Endommagement; Rupture; Défaillance; Analyse d'avaries; Fractographie.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1060.pdf
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Endommagement mecanique de materiaux composites. Role sur les proprietes hygrothermiques ArchiMer
Perreux, D; Suri, C; Varchon, D; Oytana, C.
The mechanical behaviour of polymer based glass fibre composites depends on the damage level and the amount of moisture present. Two anelastic damage models, both adapted to the mechanical properties of epoxy and polyester matrix polymers, are proposed. A coupling effect between the kinetics of damage and moisture level is shown.
Tipo: Text Palavras-chave: Moisture; Damage; Modelling; Ship technology; Mechanical properties; Composite materials; Humidité; Endommagement; Modélisation; Comportement; Matériau composite.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1062.pdf
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Influence des propriétés de la matrice sur le comportement mécanique de matériaux composites verre/polyester utilisés en construction navale de plaisance - Cas des résines polyester limitant les émissions de styrène ArchiMer
Perrot, Yves.
The work performed in this study is concerned with the characterization of glass/polyester composites for the pleasure boat industry. In particular the properties of polyester resins limiting styrene emissions have been evaluated. Physico-chemical and mechnanical tests were first performed in order to understand the roles played by the constituants (matrix, fibres and fibre/matrix interface). Then a study of damage mechanisms, delamination and impact resistance, was carried out on composite specimens. Durability and the influence of the marine environment was also examined through two parameters, temperature and sea water aging. Finally the transfer from material to structure was illustrated through three aspects : the influence of fabrication...
Tipo: Text Palavras-chave: Damage; Mechanical properties; Low styrene emission resins; Composite materials; Plaisure boat industry; Endommagement; Propriétés mécaniques; Résines limitant les émissions de styrène; Matériaux composites; Construction navale de plaisance.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-2485.pdf
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