High axial compressive strength in 3D-printed continuous carbon fiber reinforced thermoplastics by controlling printing forces

Naruki Ichihara, Shinnosuke Ohno, Masahito Ueda, Vikram S. Deshpande

研究成果: ジャーナルへの寄稿記事査読

抄録

Microdefects such as fiber waviness and voids are critical problems in the three-dimensional (3D) printing of continuous carbon fiber-reinforced thermoplastics (CFRTPs), degrading their mechanical properties. This work demonstrates that a regularized microstructure can be achieved by controlling printing forces, resulting in high axial compressive strength, nearing theoretical predictions. A proposed 3D-printing mechanism that measures and adjusts printing forces reduced the microdefects, as evidenced by X-ray computed tomography and structure tensor analysis. Compressive tests are performed to evaluate the improvement of microstructures and their mechanical properties because compressive strength is sensitive to microdefects.

本文言語英語
論文番号112052
ジャーナルComposites Part B: Engineering
291
DOI
出版ステータス出版済み - 15 2月 2025

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