Experimental RTM manufacturing analysis of carbon/epoxy composites for aerospace application

Autor(es)

Thatiane Brocks ^[1] ; Marcos Yutaka Shiino ^[2] ; Maria Odila Hilário Cioffi ^[3] ; Herman Jacobus Cornelis Voorwald ^[4] ; Angelo Caporalli Filho ^[5]

Afiliação do(s) autor(es)

^[1] Universidade Estadual Paulista - UNESP. Fatigue and Aeronautic Materials Research Group - Brasil

^[2] Universidade Estadual Paulista - UNESP. Fatigue and Aeronautic Materials Research Group - Brasil

^[3] Universidade Estadual Paulista - UNESP. Fatigue and Aeronautic Materials Research Group - Brasil

^[4] Universidade Estadual Paulista - UNESP. Fatigue and Aeronautic Materials Research Group - Brasil

^[5] Universidade Estadual Paulista - UNESP. Fatigue and Aeronautic Materials Research Group - Brasil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 16, n. 5, p. 1175-1182, 2013-07-05.

Resumo

The success of manufacturing composite parts by liquid composite molding processes with RTM depends on tool designs, efficient heat system, a controlled injection pressure, a stabilized vacuum system, besides of a suitable study of the preform lay-up and the resin system choice. This paper reports how to assemble a RTM system in a laboratory scale by specifying heat, injection and vacuum system. The design and mold material were outlined by pointing out its advantages and disadvantages. Four different carbon fiber fabrics were used for testing the RTM system. The injection pressure was analyzed regarding fiber volume content, preform compression and permeability, showing how these factors can affect the process parameters. The glass transition temperature (Tg) around 203 ºC matched with the aimed temperature of the mold which ensured good distribution of the heat throughout the upper and lower mold length. The void volume fraction in a range of 2% confirmed the appropriate RTM system and parameters choice. (AU)

• Processo FAPESP: 06/02121-6 - Compósito processado via RTM
• Beneficiário: Maria Odila Hilário Cioffi
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 09/03284-4 - Compósito Estrutural via RTM para Aplicação em Trem de Pouso
• Beneficiário: Thatiane Brocks
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 11/01937-0 - Taxa de delaminação em compósitos 5HS carbono/epóxi processado via RTM: relação do carregamento axial tração-tração como modos I e II puros
• Beneficiário: Marcos Yutaka Shiino
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/07646-0 - Avaliação do efeito do gradiente de pressão no processamento RTM em laminado 5HS por DCB no modo i em fadiga
• Beneficiário: Marcos Yutaka Shiino
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado