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

Kentaro Sugiyama, Ryosuke Matsuzaki, Andrei V. Malakhov, Alexander N. Polilov, Masahito Ueda, Akira Todoroki, Yoshiyasu Hirano

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Article number107905
JournalComposites Science and Technology
Volume186
DOIs
Publication statusPublished - 20 Jan 2020

Fingerprint

Printing
Volume fraction
Stiffness
Fibers
Composite materials
3D printers
Trajectories
Bolts
Fiber reinforced materials
Carbon fibers
Laminates

Cite this

Sugiyama, Kentaro ; Matsuzaki, Ryosuke ; Malakhov, Andrei V. ; Polilov, Alexander N. ; Ueda, Masahito ; Todoroki, Akira ; Hirano, Yoshiyasu. / 3D printing of optimized composites with variable fiber volume fraction and stiffness using continuous fiber. In: Composites Science and Technology. 2020 ; Vol. 186.
@article{9d85959fa00a48f6806880bdaf814c97,
title = "3D printing of optimized composites with variable fiber volume fraction and stiffness using continuous fiber",
abstract = "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.",
author = "Kentaro Sugiyama and Ryosuke Matsuzaki and Malakhov, {Andrei V.} and Polilov, {Alexander N.} and Masahito Ueda and Akira Todoroki and Yoshiyasu Hirano",
year = "2020",
month = "1",
day = "20",
doi = "10.1016/j.compscitech.2019.107905",
language = "English",
volume = "186",
journal = "Composites Science and Technology",
issn = "0266-3538",
publisher = "Elsevier BV",

}

3D printing of optimized composites with variable fiber volume fraction and stiffness using continuous fiber. / Sugiyama, Kentaro; Matsuzaki, Ryosuke; Malakhov, Andrei V.; Polilov, Alexander N.; Ueda, Masahito; Todoroki, Akira; Hirano, Yoshiyasu.

In: Composites Science and Technology, Vol. 186, 107905, 20.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - 3D printing of optimized composites with variable fiber volume fraction and stiffness using continuous fiber

AU - Sugiyama, Kentaro

AU - Matsuzaki, Ryosuke

AU - Malakhov, Andrei V.

AU - Polilov, Alexander N.

AU - Ueda, Masahito

AU - Todoroki, Akira

AU - Hirano, Yoshiyasu

PY - 2020/1/20

Y1 - 2020/1/20

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85074950143&partnerID=8YFLogxK

U2 - 10.1016/j.compscitech.2019.107905

DO - 10.1016/j.compscitech.2019.107905

M3 - Article

AN - SCOPUS:85074950143

VL - 186

JO - Composites Science and Technology

JF - Composites Science and Technology

SN - 0266-3538

M1 - 107905

ER -