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Investigation of mechanical properties of additive manufactured graphene-reinforced aluminium composites

机译：添加剂制造石墨烯增强铝复合材料力学性能研究

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Graphene considered as an ideal reinforcement for metal matrix composites(MMCs)because of its excellent optical,electrical and mechanical properties has important application prospects in materials science,micro-nano processing and so on.Meanwhile,additive manufactured MMCs becomes the hotspot of current research due to the advantages of precise and controllable structure and easy implementation of modularization.In this paper,a two-dimensional rate-dependent crystal plasticity model using the numerical model is developed to simulate the mechanical behaviors of additive manufactured graphene-reinforced aluminium matrix composites(AMCs)under tensile load in a mesoscale.The mechanical properties are described by varying the volume fractions and distribution patterns of graphene.The results verify that graphene is the main load-bearing part of AMCs.The volume fraction and distribution pattern of graphene play an important role in the crystal dislocation strengthening of AMCs.Moreover,it is proved that the additive manufactured graphene-reinforced AMCs have a potential improvement with increased graphene volume fraction and optimized geometric graphene parameters.
机译：石墨烯被认为是金属基质复合材料（MMC）的理想增强，因为其优异的光学，电气和机械性能具有重要的应用前景，在材料科学，微纳米加工等中具有重要的应用前景，微纳米加工等on.Mean，添加剂制造的MMC成为当前研究的热点由于结构精确和可控结构和易于实施模块化。在本文中，开发了一种使用数值模型的二维速率依赖性晶体塑性模型来模拟添加制造的石墨烯增强铝基复合材料的机械行为（在Messcale中的拉伸载荷下，通过改变石墨烯的体积分数和分布图来描述机械性能。结果验证了石墨烯是AMCS的主要承载部分。石墨烯的体积分数和分布图案在水晶脱位强化中的重要作用.MOREOVER，我证明，添加剂制造的石墨烯增强的AMC具有潜在的改进，具有增加的石墨烯体积分数和优化的几何石墨烯参数。

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