Fabricación mediante procesos de transferencia de resina y caracterización mecánica de materiales compuestos a partir de matrices poliméricas reforzadas con fibra de basalto
[EN] In this work, first, it has been conducted a study on the experimental determination of the permeability of a fibrous reinforcement. To reach this end, a test bench have been designed and mounted. After calibration and preliminary tests, the test bench has been used within the framework of a co...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/53932 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/53932 |
| Access Level: | acceso abierto |
| Palabra clave: | Composites LCM Permeabilidad Green Composites Absorción de agua Impactos de baja velocidad Sandwich INGENIERIA DE LOS PROCESOS DE FABRICACION |
| Sumario: | [EN] In this work, first, it has been conducted a study on the experimental determination of the permeability of a fibrous reinforcement. To reach this end, a test bench have been designed and mounted. After calibration and preliminary tests, the test bench has been used within the framework of a concurrent measurement exercise, namely "Permeability Benchmark II", in which has taken part a dozen research centers worldwide. The results obtained are analyzed in order to determine the different factors that cause dispersions during experimental determination of permeability values. Moreover, it has been studied the impact behavior of a composite material from a matrix fiber reinforced polybutylene terephthalate basalt. The work has focused on two main points. First, the manufacturing process via vacuum-assisted resin transfer molding. Subsequently it has been performed some physical characterizations to determine some properties as crucial as the density, crystallinity, void content and fiber properties. In order to make a robust interpretation of the response to impacts of rolling, besides the actual impact characterization, the interlaminar strength characterization has been considered. The range of incident energy ranges from very low levels to achieve energy penetration. For obvious reasons, it has been conducted a duplicate study on a equivalent material made of a commercial epoxy matrix reinforced with the same fabric. Due to environmental concerns, it is important to find an alternative to traditional materials used for the manufacture of composite materials. In this work, it has been conducted a study on the manufacturing and mechanical characterization of an asymmetric sandwich laminate from a bio-reinforced epoxy and flax and basalt matrix, being the core of natural cork. The dynamics of water absorption and the flexural behavior have been e experimentally estimated. Modifying the initial parameters allows influencing the infiltration of the resin through the pores of the cork thus changing the local stiffness and therefore the behavior of the material. |
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