Void volume fraction of hybrid composites processed by RTM: optimization of voids determination via mercury porosimetry

• Grant number: 15/19967-4
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2016
• End date: July 31, 2017
• Field of knowledge: Engineering - Aerospace Engineering
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Maria Odila Hilário Cioffi
• Grantee: Francisco Maciel Monticeli
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

With Industries development and modernization of aeronautical sector, composites have become widely used as a result of constant search for materials with specific properties as higher mechanical/lightness. The resin transfer molding (RTM) is a process that has a high efficacy to obtaining advanced composites with the required characteristics for aeronautical use. This study will be based on hybrid composite (carbon and glass fiber/epoxy resin), processed by RTM, and the material characterization to know the synergistic effect on its properties. This research has the objective to study the void volume fraction between carbon, glass and hybrid composites to understand the fabric variation relation with the resin adherence and the void formation. The great importance of porosity analysis is the significant effects that voids causes in the structure, which may reproduce failures in the material. Another important aspect in this project is the analysis of the size distribution and the volume fraction of voids by mercury porosimetry technique, compared to results found by acid digestion technique adding the results of characterization by optical microscopy (materialography). The analysis void fraction by Hg porosimetry is a new technique for structural composites, being able to provide data as a fraction of open pores and the void size distribution. The read parameters of void will be varied to determine the best routine analysis, using Taguchi method, and then the statistical analysis of variance (ANOVA) and the signal / noise influence to result in the best analysis void fraction method of Hg porosimetry. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE OLIVEIRA, DANIEL MAGALHAES; COELHO DE CARVALHO BENINI, KELLY CRISTINA; MONTICELI, FRANCISCO MACIEL; SCHUKRAFT, JOEL PASCAL; CAMPOS DE BOMFIM, ANNE SHAYENE; HILARIO CIOFFI, MARIA ODILA; CORNELIS VOORWALD, HERMAN JACOBUS. Permeability of untreated and atmospheric plasma treated coconut fiber mats. MATERIALS RESEARCH EXPRESS, v. 6, n. 9, SEP 2019. (15/19967-4, 06/02121-6)

MONTICELI, FRANCISCO MACIEL; DAOU, DAVID; DINULOVIC, MIRKO; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA. Mechanical behavior simulation: NCF/epoxy composite processed by RTM. POLYMERS & POLYMER COMPOSITES, v. 27, n. 2, p. 66-75, FEB 2019. (15/19967-4)

MACIEL MONTICELI, FRANCISCO; ORNAGHI JR, HEITOR LUIZ; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA. Three-dimensional porosity characterization in carbon/glass fiber epoxy hybrid composites. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, v. 125, OCT 2019. (06/02121-6, 15/19967-4)

MONTICELI, FRANCISCO MACIEL; MONTORO, SERGIO ROBERTO; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA. Porosity Characterization of Carbon Fiber/Epoxy Composite Using Hg Porosimetry and Other Techniques. POLYMER ENGINEERING AND SCIENCE, v. 60, n. 4, p. 841-849, APR 2020. (15/19967-4)

MONTICELI, FRANCISCO MACIEL; DA SILVA MONTE VIDAL, DIELLY CAVALCANTI; SHIINO, MARCOS YUTAKA; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA. Hybrid-permeability model evaluation through concepts of tortuosity and resistance rate: Properties of manufactured hybrid laminate. POLYMER ENGINEERING AND SCIENCE, v. 59, n. 6, p. 1215-1222, JUN 2019. (15/19967-4, 15/10906-2)

DA SILVA MONTE VIDAL, DIELLY CAVALCANTI; ORNAGHI JR, HEITOR L.; ORNAGHI, FELIPE GUSTAVO; MONTICELI, FRANCISCO MACIEL; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA. Effect of different stacking sequences on hybrid carbon/glass/epoxy composites laminate: Thermal, dynamic mechanical and long-term behavior. JOURNAL OF COMPOSITE MATERIALS, v. 54, n. 6, AUG 2019. (15/19967-4, 15/10906-2)

MONTICELI, FRANCISCO M.; ALMEIDA, JR., JOSE HUMBERTO S.; NEVES, ROBERTA M.; ORNAGHI, FELIPE G.; ORNAGHI, HEITOR L.. On the 3D void formation of hybrid carbon/glass fiber composite laminates: A statistical approach. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, v. 137, OCT 2020. (15/19967-4, 17/10606-4)

ORNAGHI, HEITOR LUIZ; MONTICELI, FRANCISCO MACIEL; NEVES, ROBERTA MOTTA; ZATTERA, ADEMIR JOSE; HILARIO CIOFFI, MARIA ODILA; CORNELIS VOORWALD, HERMAN JACOBUS. Effect of stacking sequence and porosity on creep behavior of glass/epoxy and carbon/epoxy hybrid laminate composites. COMPOSITES COMMUNICATIONS, v. 19, p. 210-219, JUN 2020. (06/02121-6, 15/19967-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MONTICELI, Francisco Maciel. Voids measurement optimization in hybrid composites processed by RTM. 2017. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Guaratinguetá Guaratinguetá.