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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Thatiane Brocks [1] ; Marcos Yutaka Shiino [2] ; Maria Odila Hilário Cioffi [3] ; Herman Jacobus Cornelis Voorwald [4] ; Angelo Caporalli Filho [5]
Total Authors: 5
Affiliation:
[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
Total Affiliations: 5
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 16, n. 5, p. 1175-1182, 2013-07-05.
Abstract

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)

FAPESP's process: 09/03284-4 - Structural Composites via RTM for landing gear aplication
Grantee:Thatiane Brocks
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 06/02121-6 - Composite processing by RTM
Grantee:Maria Odila Hilário Cioffi
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 11/01937-0 - Crack growth rate in 5HS carbon/epoxy composites manufactured by RTM: Relationship between axial loadings with pure modes of delamination I and II
Grantee:Marcos Yutaka Shiino
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 12/07646-0 - Evaluation of pressure gradient effect of RTM process on 5HS laminate by conducting DCB fatigue test
Grantee:Marcos Yutaka Shiino
Support Opportunities: Scholarships abroad - Research Internship - Doctorate