Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551039
Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- Carbon fiber polymer composites: a preliminary study on their morphological and mechanical properties.(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022) Trapero Mascareño, Alexis; ELIAS ZUÑIGA, ALEX; 19150; Elías Zúñiga, Alex; emipsanchez; Ramírez Herrera, Claudia Angélica; Martínez Romero, Oscar; Olvera Trejo, Daniel; School of Engineering and Sciences; Campus Monterrey; Cruz Cruz, IsidroWith the increasing demand for air travel and population growth, aircraft efficiency is a top priority to decrease costs and environmental damage. The use of composite materials for modern aircraft construction has been growing rapidly in recent years. The area of opportunity to improve these materials and create more knowledge to get all the benefits they can provide is huge. In this work, further development of a previously proposed material is done. Different variants of Carbon Fiber Reinforced Composites (CFRP) composites are proposed and characterized in order to improve their mechanical properties. The polymer used in this work, a commercially available epoxy resin, is analyzed using differential scanning calorimetry (DSC) to find adequate processing parameters for a faster curing process than that suggested by the resin provider. The composite's tensile properties are improved compared to previous studies performed in the research group, but the CF fabric architecture seems to not affect the properties. Impregnation of the fibers is improved with different CF fabric architectures, and the resulting composite is more resistant in tensile tests than some conventional metallic aerospace components. Further investigation is needed to get insights into the polymer's compatibility with the CF. Further testing of the material and other variants is important to understand which parameters work best for the intended applications.
- Evaluation of Forged composite on 3D Carbon Fiber composites for exoskeletons(Instituto Tecnológico y de Estudios Superiores de Monterrey) Pérez Salazar, Miguel Alejandro; MARTINEZ ROMERO OSCAR; 2278430; Martínez Romero, Oscar; puelquio, emipsanchez; Elías Zuñiga, Alex; Olvera Trejo, Daniel; Ramírez Herrera, Claudia Angélica; School of Engineering and Sciences; Campus Monterrey; Jimenez Cedeño, Isaac HumbertoComposite materials have been widely used in recent years for their outstanding mechanical properties in different industries, especially aerospace and automotive. However, the use of these materials has impacted the development of Exoskeletons to increase physical performance to complete specific tasks or movements in the human body. Exoskeletons have been developed using aluminum and different alloys, but it has been migrated to the composite material. The evolution of the composite material to 3D woven has shown good out-of-plane mechanical properties. In most cases, composites are developed by infusion processes even though compaction has proven an increase the mechanical properties. The research aims to create an infusion and compression manufacturing system to produce 3D composite materials, delivering stable and better mechanical properties for exoskeletons components. Several experiments and tests were developed to define the best manufacturing process based on the resin distribution and the mechanical properties obtained. The mechanical properties of 3D woven composites were improved using infusion and compression molding by ensuring better impregnation and distribution of the resin through the composite and increase the mechanical properties significantly for tension and flexion. Finally, it was applied in designing a component of an exoskeleton, obtaining a saving in weight and reduction of volume.