Multiscale concurrent design and 3D printing of continuous fiber reinforced thermoplastic composites with optimized fiber trajectory and topological structure

被引:62
作者
Huang, Yiming [1 ]
Tian, Xiaoyong [1 ]
Zheng, Ziqi [1 ]
Li, Dichen [1 ]
Malakhov, Andrei V. [2 ]
Polilov, Alexander N. [2 ]
机构
[1] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, 28 Xian Ning West Rd, Xian 710049, Peoples R China
[2] Russian Acad Sci, Mech Engn Res Inst, 4 Maly Kharitonyevshy Pereulok, Moscow 101990, Russia
基金
中国国家自然科学基金;
关键词
3D printing; Multiscale design; Structure optimization; Continuous fiber; Fiber reinforced composite; CONTINUOUS CARBON-FIBER; POLYMER COMPOSITES;
D O I
10.1016/j.compstruct.2022.115241
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
3D printing of continuous fiber reinforced thermoplastic composites (CFRTPCs) enables the fabrication of multiscale structures, whose features can simultaneously span the microscale fiber trajectory and macroscale topological structure. In this study, a multiscale design and manufacturing strategy integrating concurrent optimization of micro fiber orientation and macro structural topology was developed for CFRTPCs and realized by ingenious path planning for 3D printing process. Typical structures, such as Messerschmitt-Bolkow-Blohm (MBB) beam and cantilever beam, were verified experimentally in comparison with the monoscale structures. Structural stiffness and peak load could be improved by 36.27% and 64.43% respectively for MBB beam, 123.07% and 52.16% respectively for cantilever beam, showing the significant influence on concurrent material and structure design for CFRTPCs. Multiscale concurrent design and 3D printing could promote the potential of CFRTPCs, and even challenge traditional design and manufacturing mechanism relating material and structure scale.
引用
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页数:10
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