Banca de QUALIFICAÇÃO: EVERTON CARNEIRO DA SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : EVERTON CARNEIRO DA SILVA
DATE: 14/10/2020
TIME: 08:30
LOCAL: Videoconferência
TITLE:

Analysis in Laminated Composites of Hybrid Layer with Carbon/Glass Fiber through the Finite Element Method

KEY WORDS:

Hybrid Composites, FEM, Stress Concentration Factor

PAGES: 75
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Mecânica dos Sólidos
SPECIALTY: Mecânica dos Corpos Sólidos, Elásticos e Plásticos
SUMMARY:

The constant evolution of technology has brought about the need for the production and development of new materials with the intention of covering increasingly specific service conditions. In this sense, laminated composites emerged to attend these conditions, making their indispensable in the aeronautical, aerospace industry, among others. Recently, the use of hybrid laminates has resulted in the production of composites with the main objective of combining excellent mechanical resistance with cost reduction, thus bringing a range of new materials. However, the characterization of these composites is experimentally expensive and requires extremely specialized labor. Given these motivations, the Finite Element Method was adopted in this work to perform the tensile test for the evaluation of the mechanical behavior of the hybrid composite material of carbon fiber/glass. Test specimens of the composite produced with fiber orientation angles (0 °, 30 °, 45 °, 60 ° and 90 °) were simulated with and without discontinuity, in order to also verify the influence of the stress concentration on the specimens. The preliminary results showed a difference between the average experimental and numerical stresses for samples without discontinuity, varying between 1.71% to 39.77% according to the fiber orientation (0° to 90°). In the case of discontinued samples, the results of average tension varied between 10.94% to 116.10%. These preliminary results show that the numerical test represented well the mechanical behavior obtained when compared to the experimental test, both for models without discontinuity and in models with central hole.

BANKING MEMBERS:
Interno - 434906 - AVELINO MANUEL DA SILVA DIAS
Interno - 1338331 - RAIMUNDO CARLOS SILVERIO FREIRE JUNIOR
Externo ao Programa - 5220696 - LUIZ CLAUDIO FERREIRA DA SILVA
Externo ao Programa - 3138731 - RAPHAEL ARAUJO CARDOSO