Page 1/19 Factors Affecting Ultimate Tensile Strength and Impact Toughness of 3D Printed Parts Using Fractional Factorial Design Amna Mazen ( [email protected] ) University of Detroit Mercy https://orcid.org/0000-0003-2328-8134 Brendan McClanahan University of Detroit Mercy Jonathan M. Weaver University of Detroit Mercy Research Article Keywords: Polyactic acid (PLA), Fused Filament Fabrication (FFF), Ultimate tensile strength, Impact toughness, Fractional factorial experiment Posted Date: July 29th, 2021 DOI: https://doi.org/10.21203/rs.3.rs-613985/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Version of Record: A version of this preprint was published at The International Journal of Advanced Manufacturing Technology on January 4th, 2022. See the published version at https://doi.org/10.1007/s00170-021-08433-0.