Effect of stacking sequence and porosity on creep behavior of glass/epoxy and carbon/epoxy hybrid laminate composites

Autor(es)

Ornaghi, Heitor Luiz ^[1] ; Monticeli, Francisco Maciel ^[1] ; Neves, Roberta Motta ^{[2, 3]} ; Zattera, Ademir Jose ^[3] ; Hilario Cioffi, Maria Odila ^[1] ; Cornelis Voorwald, Herman Jacobus ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ Unesp, Sch Engn, Dept Mat & Technol, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, SP - Brazil

^[2] Univ Fed Rio Grande do Sul, Postgrad Program Min Met & Mat Engn PPGE3M, Av Bento Goncalves 9500, Porto Alegre, RS - Brazil

^[3] Univ Caxias do Sul UCS, Postgrad Program Engn Proc & Technol PGEPROTEC, Caxias Do Sul, RS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: COMPOSITES COMMUNICATIONS; v. 19, p. 210-219, JUN 2020.
• Citações Web of Science: 0

Resumo

The creep behavior of hybrid carbon/glass laminate composites was investigated using a dynamic mechanical analyzer and different temperature profiles. Dynamic analysis and porosity were carried out prior to the creep test applying Findley's power law. The dynamic curves were not influenced by porosity but were affected by the architecture of the composites. The creep tests showed porosity dependence at temperatures below T-g while at higher temperatures, the architecture of the reinforcement plays a major role. Time-temperature superposition was conducted for long-term creep prediction and the results showed lower creep strain for the carbon and interleaved hybrid composites. (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: 15/19967-4 - Fração volumétrica de vazios em compósitos híbridos processados por RTM: otimização da determinação de vazios via porosimetria de mercúrio
• Beneficiário: Francisco Maciel Monticeli
• Modalidade de apoio: Bolsas no Brasil - Mestrado