摘要
In this study,a high impact resistant multi-layered composite consisting of continuous carbon fibre/nylon(CCF)and short carbon fibre/nylon(SCF)layers is developed via 3D printing technology.The effect of CCF/SCF layers configuration on the impact resistance is investigated by low-velocity impact test,and the impact failure mechanism of the 3D printed composites is explored by microscopic observations and finite element(FE)simulation analysis.The results show that the 3D printed multi-layered composite with SCF layers distributed in the middle(HFA)exhibits higher impact resistant performance than the specimens with alternating SCF/CCF layers(HFB)and CCF layers distributed in the middle(HFC).The effect of CCF/SCF layers proportion on the impact performance is also studied by FE simulation,and the results show that the specimen with a CCF/SCF proportion of 7.0 exhibits the highest impact strength.
在本研究中,通过3D打印技术,开发了一种由连续碳纤维/尼龙(CCF)和短碳纤维/尼龙(SCF)组成的高抗冲击多层复合材料.通过低速冲击试验研究了CCF/SCF层分布结构对复合材料抗冲击性能的影响,并通过微观观察和有限元模拟分析探讨了复合材料的冲击破坏机理.结果表明:SCF层位于试样中间的3D打印多层复合材料具有更高的抗冲击性能;通过有限元模拟研究了CCF/SCF层比例对冲击性能的影响,当CCF/SCF层比例为7.0时,冲击强度最高.
作者
Zhen Huang
Kunkun Fu
Yan Li
Cheng Yan
黄振;付昆昆;李岩;闫澄(School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai,200092,China;School of Mechanical,Medical and Process Engineering,Centre for Materials Science,Queensland University of Technology,Brisbane,2434,Australia)
基金
This work was supported by the National Science Fund for Distinguished Young Scholars(Grant No.11625210)
the National Science Foundation of China(Grant No.51873153)
the Shanghai Pujiang Program(Grant No.19PJ1410000)
the Shanghai International Science and Technology Cooperation Fund Project(Grant No.19520713000).
