Influence of environmental effect on thermal and mechanical properties of welded PPS/carbon fiber laminates

Autor(es)

Araujo, Izabely Goncalves ^[1] ; Santos, Luis F. P. ^[1] ; Marques, Luis F. B. ^[1] ; Reis, Jonas F. ^[1] ; de Souza, Samia Danuta B. ^[1] ; Botelho, Edson C. ^[1]

Afiliação do(s) autor(es)

^[1] UNESP Sao Paulo State Univ, Sch Engn, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS RESEARCH EXPRESS; v. 6, n. 10 OCT 2019.
• Citações Web of Science: 0

Resumo

This work consists in the evaluation of the influence of the environmental effects (ultraviolet radiation and humidity) on PPS/carbon fiber thermoplastic composite laminates integrated by electrical resistance welding. In order to evaluate how welding and conditioning influence the properties of the composite, the following tests were performed: Dynamic-Mechanical Analyze (DMA) and Thermomechanical Analyze (TMA) to evaluate the working temperature of the material, the Iosipescu test and Interlaminar shear test (ILSS) to evaluate interlaminar fracture strength and the Double Cantilever Beam (DCB) and End Notched Flexure (ENF) were used to analyze interlaminar fracture toughness. Considering the presented results, both the hygrothermal and UV conditioning did not promote such relevant modifications in the laminate structure, except for the DCB evaluation, which showed a reduction of approximately 53% in relation to the G(Ic) of the unconditioned samples. Another factor also analyzed was that welding did not promote significant reductions in the thermal and mechanical properties of the laminates. (AU)

• Processo FAPESP: 17/16970-0 - Obtenção e caracterização de compósitos termoplásticos nanoestruturados para aplicação aeronáutica
• Beneficiário: Edson Cocchieri Botelho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/04147-7 - Influência do efeito ambiental nas propriedades térmicas e mecânicas de compósitos soldados de PPS/fibras de carbono com aplicação aeronáutica
• Beneficiário: Izabely Gonçalves Araújo Costa
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica