3D打印纤维增强复合材料力学性能研究进展

Recent Advances in the Mechanical Properties of 3D Printed Fiber-Reinforced Composites

3D打印纤维增强复合材料具有复杂结构一体化成型、无模具制备和力学性能可设计等优势,可显著降低纤维增强复合材料的制造周期和成本.然而,3D打印技术低成型压力和逐层制造的特点,给3D打印纤维增强复合材料的力学性能带来了一定挑战.本文从打印方法、力学性能及其影响因素三个方面,总结了近年来国内外有关短纤维/连续纤维增强高分子基复合材料和纤维增强水泥基复合材料的力学性能研究进展.旨在展现目前3D打印纤维增强复合材料的成型方法种类、所能达到的力学性能水平和力学性能的影响因素,为实现3D打印纤维增强复合材料的力学高性能化提供参考.最后,对3D打印纤维增强复合材料未来研究发展方向进行了展望.

3D printed fiber-reinforced composites(3DFRCs) offer the advantages of integrated molding of complex structures,mold-free fabrication and tailored mechanical properties, which can significantly reduce the manufacturing cycle and the cost of fiber-reinforced composites. However, the low molding pressure and layer-by-layer manufacturing characteristics of 3D printing technology bring challenges to the mechanical properties of 3DFRCs. The purpose of this paper is to summarize the recent progress of researches on the mechanical properties of short/continuous fiber-reinforced polymer matrix composites and fiberreinforced concrete matrix composites in domestic and overseas, in terms of three aspects: printing methods, mechanical properties and their influence factors. In order to show the various 3D printing methods, the level of mechanical properties that can be achieved and the factors influencing the mechanical properties, to provide a reference for achieving the high mechanical performance of 3DFRCs. Finally, the future research directions of the 3D printed fiber-reinforced composites are prospected.