Abstract 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.

中文翻译：

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混合复合材料：在线软件辅助的实验、数值和分析评估

摘要 由于基体和纤维之间的加成或协同效应，混合复合材料通常用于获得量身定制的性能，产生比使用单根纤维更广泛的性能。两种或多种增强材料的结合使用使混合复合材料的机械行为更加复杂，需要对经典微机械方法进行验证以估计其性能。这项工作的目的是通过 MECH-Gcomp 软件中实施的微机械分析模型和基于有限元的均质化分析，研究单向混合纤维复合材料在不同组成体积分数下的机械性能。通过长丝缠绕加工生产具有玻璃和碳纤维的环氧树脂复合材料，进行了一项实验活动。对样品进行拉伸（纵向和横向）和面内剪切试验，以获得混合复合材料的弹性模量、泊松比和剪切模量。考虑到所采用的假设，在实验、数值和分析方法之间发现了良好的相关性。