AUTHOR=Lee Gyu-Wol , Kim Tae-Hyun , Yun Jong-Hwan , Kim Nam-Joo , Ahn Ki-Hwan , Kang Min-Soo 

TITLE=Strength of Onyx-based composite 3D printing materials according to fiber reinforcement

JOURNAL=Frontiers in Materials

VOLUME=Volume 10 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2023.1183816

DOI=10.3389/fmats.2023.1183816

ISSN=2296-8016

ABSTRACT=This study aims to evaluate the mechanical strength of 3D printed objects of composite material. The composite material considered in this study comprises onyx as the basic material, and glass fiber and carbon fiber as the internal reinforcements. 3D printing using composite materials generally involves laminating fiber reinforcements in the form of layers within the printed part.  To analyze the effect of such reinforcements on the printed parts, specimens are prepared by varying the number of layers and arrangement conditions of the reinforcement. The analysis shows that the tensile strength increases with the number of reinforcement layers. Furthermore, a higher tensile strength is observed when the reinforcements were laminated at regular intervals than when they are arranged in the center.