3D printing of optimized composites with variable fiber volume fraction and stiffness using continuous fiber

被引：154

作者：

Sugiyama, Kentaro ^{[1
]}

Matsuzaki, Ryosuke ^{[1
]}

Malakhov, Andrei V. ^{[2
]}

Polilov, Alexander N. ^{[2
]}

Ueda, Masahito ^{[3
]}

Todoroki, Akira ^{[4
]}

Hirano, Yoshiyasu ^{[5
]}

机构：

[1] Tokyo Univ Sci, 2641 Yamazaki, Noda, Chiba 2788510, Japan

[2] Russian Acad Sci, Mech Engn Res Inst, Maly Kharitonyevsky Pereulok 4, Moscow, Russia

[3] Nihon Univ, Chiyoda Ku, 1-8-14 Kanda Surugadai, Tokyo 1018308, Japan

[4] Tokyo Inst Technol, Meguro Ku, 2-12-1 O Okayama, Tokyo 1528551, Japan

[5] Japan Aerosp Explorat Agcy, 6-13-1 Osawa, Mitaka, Tokyo 1810015, Japan

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2020年 / 186卷

基金：

俄罗斯基础研究基金会;

关键词：

CONTINUOUS CARBON-FIBER; DESIGN; PERFORMANCE; HOLE; PREDICTION; RESISTANCE; JOINTS; PLATES; MODEL; SIZE;

D O I：

10.1016/j.compscitech.2019.107905

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this study, we optimized the curved fiber trajectories to realize variable fiber volume fraction and stiffness composites (VVfSC) using a continuous fiber composite 3D printer. During optimization, the fiber orientation was maintained along the principal stress direction based on preliminary stress field calculations, and the fiber trajectories were subsequently obtained. The fiber volume fraction was calculated from the obtained fiber trajectories; then, stress field calculations and redetermination of the fiber trajectories were performed. Optimization was achieved by repeating this sequence until convergence was obtained. Based on the optimization result, the specimens were molded using a continuous carbon fiber 3D printer and evaluated with bolt joint tensile tests. It was demonstrated that the stiffness and strength per unit weight of the optimized VVfSC were 9.4 and 1.6 times greater than those of conventional linear laminates, respectively.

引用

页数：7

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