Análisis del flujo de resina durante la fabricación de compuestos de GFRP mediante RTM que contienen insertos impermables incrustados

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i6.15362

Palabras clave:

Materiales compuestos; RTM; Insertos incrustados.

Resumen

El objetivo de este trabajo es analizar el flujo de resina durante la fabricación de composites de GFRP (Polímero Reforzado con Fibra de Vidrio) mediante RTM (Resin Transfer Moulding) que contienen insertos impermeables incrustados. Los compuestos se procesaron con inserciones impermeables de polietileno de alta densidad incrustados mediante RTM. El sistema de procesamiento se configuró para que se pudiera realizar el análisis digital de la imagen de flujo durante y después del procesamiento. Se cortaron de las placas muestras para las pruebas de flexión en tres puntos y se analizaron sus superficies fracturadas mediante fractografía óptica. Los resultados indican que la presencia de los insertos bloqueó el flujo cruzado de resina dificultando que las fibras se humedecieran por completo, lo que condujo a un espesor de placa no uniforme. Se observaron regiones ricas en resina cerca de los lados de los insertos. El análisis del modo de falla de los composites a través de la prueba de flexión en tres puntos mostró deslaminación de las fibras por esfuerzo cortante tipo II, despegue entre la interfaz fibra / matriz y el inserto, y fractura del composite con propagación de grietas a través del región rica en resina.

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Publicado

22/05/2021

Cómo citar

ARANHA, R.; CARVALHO, L. H. de; AMORIM JUNIOR, W. F. de. Análisis del flujo de resina durante la fabricación de compuestos de GFRP mediante RTM que contienen insertos impermables incrustados. Research, Society and Development, [S. l.], v. 10, n. 6, p. e10410615362, 2021. DOI: 10.33448/rsd-v10i6.15362. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/15362. Acesso em: 30 jun. 2024.

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Sección

Ingenierías