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Thoughness determination in composite multimaterial closed corners

Opened Access Thoughness determination in composite multimaterial closed corners
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Autor: Vicentini, D.
Barroso Caro, Alberto
Justo Estebaranz, Jesús
Mantic, Vladislav
París Carballo, Federico
Departamento: Universidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras
Fecha: 2011
Publicado en: International Conference on Composite Materials (2011),
Tipo de documento: Ponencia
Resumen: In the present work, a general procedure for the experimental evaluation of the generalized fracture toughness in multimaterial corners is defined. The proposed method is suitable for closed corners (all material wedges being bonded) having two singular terms in the asymptotic stress representation at the corner tip. For a particular corner configuration, the method finds the load configuration at which one of the singular terms vanishes, thus the main stress contribution being controlled by the other nonvanishing singular term. The experimental test, until failure, using the previously defined load configuration allows the generalized fracture toughness associated to each singular term to be evaluated. The whole procedure has been applied to a bimaterial CFRP-Adhesive bimaterial corner and the generalized fracture toughness values have been obtained. The testing of mixed modes has permitted a failure envelope based on the generalized fracture toughness values at t...
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Cita: Vicentini, D., Barroso Caro, A., Justo Estebaranz, J., Mantic, V. y París Carballo, F. (2011). Thoughness determination in composite multimaterial closed corners. En International Conference on Composite Materials, Montreal, Canadá.
Tamaño: 172.9Kb
Formato: PDF

URI: https://hdl.handle.net/11441/72469

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