Process-induced degradation of tensile strength in 3D-printed carbon fiber–reinforced PA6: Experimental and numerical study

John Gabriel G. Decena, Yamato Hoshikawa, Taiyo Koyama, Yoshiaki Kawagoe, Yuki Takayama, Tomonaga Okabe, Department of Aerospace Engineering, Tohoku University, Department of Aeronautical Engineering, FEATI University, Research Center for Green X-Tech, Tohoku University, Department of Aeronautics and Astronautics, The University of Tokyo, International Center for Synchrotron Radiation Innovation Smart, Tohoku University, Graduate School of Agricultural Science, Tohoku University, Department of Materials Science and Engineering, University of Washington, Research Center for Structural Materials, Polymer Matrix Hybrid Composite Materials Group, National Institute for Materials Science

Journal of Reinforced Plastics and Composites

Published online on June 10, 2026

Abstract

Journal of Reinforced Plastics and Composites, Ahead of Print.
Continuous carbon fiber–reinforced composites (CCFRCs) produced by 3D printing offer design flexibility but often exhibit reduced mechanical performance due to process-induced defects. This study examines the effect of the printing process on the tensile ...