Tricot stitched carbon fiber reinforced polymer composite laminates manufactured by resin transfer molding process: C-scan and flexural analysis

Autor(es)

Shiino, Marcos Yutaka ^[1] ; Hilario Cioffi, Maria Odila ^[1] ; Jacobus Voorwald, Herman Cornelis ^[1] ; Ortiz, Edmundo Cabral ^[2]

Afiliação do(s) autor(es)

^[1] UNESP Univ Estadual Paulista, Guaratingueta Fac Engn, Mat & Technol Dept, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, SP - Brazil

^[2] Inst Tecnol Aeronaut, DCTA, Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF COMPOSITE MATERIALS; v. 47, n. 14, p. 1695-1703, JUN 2013.
• Citações Web of Science: 6

Resumo

NC2 (R) tricot stitched carbon preform has been tested to evaluate its potential application in aircraft structures. It is one in a range of stitched fabric group, specially developed by Hexcel Composites, designed to be processed with a RTM6 monocomponent resin. This article aims to evaluate the tricot stitched fabric behavior towards resin flow front in resin transfer molding process, its mechanical performance in bending test, and its structure during C-scan non-destructive inspection. Flexural performance of the laminates and the scatter of the results corresponded well with C-scan ultrasonic maps, where resin pockets near the stitches were distinguished. The fracture area visualization, via photography and scanning electron microscopy techniques, aided to find a few flaws between the stitch yarns, which conducted to a larger scatter of the flexural rupture strength results. (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: 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