INTECIN 20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Deformation and fracture behaviour of vinylester/fly ash composites
Autor/es:
A. STOCCHI, A. VÁZQUEZ AND C. BERNAL
Lugar:
San Sebastián, España
Reunión:
Conferencia; V International Conference on Science and Technology of Composites Materials. ISBN 978-84-692-5483-7; 2009
Institución organizadora:
Asociación Española de Materiales Compuestos
Resumen:
In the present work, the deformation and fracture behaviour of a commercial vinylester resin reinforced with fly ash was investigated. Uniaxial compression tests and fracture tests on SENB specimens were performed on composites with different ash content. Composites fracture surfaces were analysed by SEM and the toughening mechanisms were identified. Under uniaxial compression, all materials exhibited ductile behaviour and the composites were stiffer than the vinylester matrix. In fracture tests, the composites behaved brittlely with improved fracture properties in comparison to the matrix. Different toughening mechanisms such as crack bowing, crack deflection and debonding of ash particles from the matrix followed by plastic void growth were found to be operative in these composites.
