Affiliation:
1. Mechanical and Aerospace Engineering Department, University of Miami, Coral Gables, FL 33146, USA
Abstract
The emergence of additive manufacturing technologies for fiber-reinforced thermoset composites has greatly bolstered their utilization, particularly within the aerospace industry. However, the ability to precisely measure the interface strength between the fiber and thermoset matrix in additively manufactured composites has been constrained by the cumbersome nature of single-fiber pull-out experiments and the need for costly instrumentation. This study aims to introduce a novel methodology for conducting single-fiber pull-out tests aimed at quantifying interface shear strength in additively manufactured thermoset composites. Our findings substantiate the viability of this approach, showcasing successful fiber embedding within composite test specimens and precise characterization of fiber pull-out strength using a conventional mechanical testing system. The test outcome revealed an average interfacial strength value of 2.4 MPa between carbon fiber and the thermoset epoxy matrix, aligning with similar studies in the existing literature. The outcome of this study offers an affordable and versatile test methodology to revolutionize composite material fabrication for superior mechanical performance.
Reference44 articles.
1. 3D Printing of Short-Carbon-Fiber-Reinforced Thermoset Polymer Composites via Frontal Polymerization;Ziaee;ACS Appl. Mater. Interfaces,2022
2. 3D printing of continuous fiber-reinforced thermoset composites;He;Addit. Manuf.,2021
3. Blanco, I. (2020). The Use of Composite Materials in 3D Printing. J. Compos. Sci., 4.
4. (2024, March 23). Additive Manufacturing: Science and Technology—Emrah Celik—Google Books. Available online: https://books.google.com/books?hl=en&lr=&id=k_cdEAAAQBAJ&oi=fnd&pg=PR7&dq=info:3wlRhCJ2BcoJ:scholar.google.com&ots=dWkjaZ2yD7&sig=HGK9qR5a5FWR_zJsH-Pv42HMQN4#v=onepage&q&f=false.
5. Microstructure control of highly oriented short carbon fibres in SiC matrix composites fabricated by direct ink writing;Lu;Ceram. Int.,2019