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Interface characterization in fiber-reinforced polymer-matrix composites
A novel methodology is presented and applied to measure the shear interface strength of fiber-reinforced polymers. The strategy is based in fiber push-in tests carried out on the central fiber of highly-packed fiber clusters with hexagonal symmetry, and it is supported by a detailed finite element analysis of the push-in test to account for the influence of hygrothermal residual stresses, fiber constraint and fiber anisotropy on the interface strength. Examples of application are presented to determine the shear interface strength in carbon and glass fiber composites reinforced with either thermoset or thermoplastic matrices. In addition, the influence of the environment (either dry or wet conditions) on the interface strength in C/epoxy composites is demonstrated. ; This investigation was supported by the Ministerio de Ciencia e Innovación of Spain through the Grant MAT2012-37552, by the Comunidad de Madrid through the program DIMMAT (P2013/MIT2775), and by the European Community's Seventh Framework Programme FP7/2007-2013 under Grant Agreement 213371 (MAAXIMUS, www.maaximus.eu). In addition, the support of Airbus through the project SIMSCREEN ("Simulation for Screening Properties of Materials") is gratefully acknowledged.
Interface characterization in fiber-reinforced polymer-matrix composites
A novel methodology is presented and applied to measure the shear interface strength of fiber-reinforced polymers. The strategy is based in fiber push-in tests carried out on the central fiber of highly-packed fiber clusters with hexagonal symmetry, and it is supported by a detailed finite element analysis of the push-in test to account for the influence of hygrothermal residual stresses, fiber constraint and fiber anisotropy on the interface strength. Examples of application are presented to determine the shear interface strength in carbon and glass fiber composites reinforced with either thermoset or thermoplastic matrices. In addition, the influence of the environment (either dry or wet conditions) on the interface strength in C/epoxy composites is demonstrated. ; This investigation was supported by the Ministerio de Ciencia e Innovación of Spain through the Grant MAT2012-37552, by the Comunidad de Madrid through the program DIMMAT (P2013/MIT2775), and by the European Community's Seventh Framework Programme FP7/2007-2013 under Grant Agreement 213371 (MAAXIMUS, www.maaximus.eu). In addition, the support of Airbus through the project SIMSCREEN ("Simulation for Screening Properties of Materials") is gratefully acknowledged.
Interface characterization in fiber-reinforced polymer-matrix composites
Naya Montans, Fernando (author) / Molina-Aldareguía, J. M. (author) / Lopes, C. S. (author) / González, C. (author) / Llorca, J. (author) / Comunidad de Madrid / Ministerio de Ciencia e Innovación (España)
2017-01-01
AR/0000029120
Article (Journal)
Electronic Resource
English
DDC:
690
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