Hybrid composites : experimental, numerical and analytical assessment aided by online software

• Autor(a) principal: Menezes, Eduardo Antonio Wink
• Data de Publicação: 2020
• Outros Autores: Eggers, Frederico, Marczak, Rogerio Jose, Iturrioz, Ignacio, Amico, Sandro Campos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/220466
• topic: Compósitos híbridos; Propriedades mecânicas dos materiais; Hybrid composites; Online software; Micromechanics; Finite element

Hybrid composites are commonly applied to obtain tailor-made properties due to additive or synergistic effect between matrix and fibers, yielding a wider range of properties than the use of a single fiber could achieve. The combined use of two or more reinforcements makes the mechanical behavior of hybrid composites more complex, demanding validation of classical micromechanical approaches for the estimate of their properties. The aim of this work is to investigate the mechanical properties of a unidirectional hybrid fibrous composite, at different constituent volumetric fractions, through micromechanical analytical models implemented in the software MECH-Gcomp and through a finite element-based homogenization analysis. An experimental campaign was carried out by producing epoxy composites with glass and carbon fibers via filament winding processing. The samples were submitted to tensile (longitudinal and transverse directions) and in-plane shear tests to obtain elastic moduli, Poisson's ratios and shear moduli of the hybrid composites. Good correlation was found between experimental, numerical and analytical approaches considering the adopted assumptions.