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Desenvolvimento e análise de materiais compósitos naturais
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ISBN10: 6207066049
ISBN13: 9786207066049
Publisher: Edicoes Nosso Conhecimento
Published: Mar 27 2025
Pages: 88
Weight: 0.28
Height: 0.21 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786207066049
Publisher: Edicoes Nosso Conhecimento
Published: Mar 27 2025
Pages: 88
Weight: 0.28
Height: 0.21 Width: 6.00 Depth: 9.00
Language: Portuguese
Os materiais compósitos estão a surgir principalmente em resposta à s exigências da tecnologia devido ao rápido avanço das actividades nas indústrias aeronáutica, aeroespacial e automóvel. As fibras naturais têm atraÃdo recentemente a atenção de cientistas e tecnólogos devido à s vantagens que estas fibras oferecem em relação aos materiais de reforço convencionais, e o desenvolvimento de compósitos de biofibras tem sido um tema de interesse nos últimos anos. O presente trabalho centra-se na investigação das propriedades mecânicas do compósito de fibra de bananeira/resina epóxi com fracções volumétricas de 30%, 40% e 50% de fibra de bananeira e diferentes orientações das fibras 00, 450 e 900. As propriedades mecânicas, como a resistência à tração e a resistência à flexão, são avaliadas experimentalmente. Os resultados experimentais dos ensaios de tração são validados utilizando o pacote de software ANSYS.12.0 e os resultados obtidos estão muito próximos dos resultados experimentais. Para investigar a ligação entre o reforço e a matriz, foram registados os microgramas electrónicos de varrimento da superfÃcie fracturada do compósito epoxÃdico de banana. Assim, é preferÃvel utilizar o compósito banana/epóxi com 40% de fração volumétrica e 0 graus de orientação das fibras para várias aplicações.
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