PSI - Issue 28

Available online at www.sciencedirect.com Available online at www.sciencedirect.com Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 28 (2020) 720–725 Structural Integrity Procedia 00 (2020) 000–000 Structural Integrity Procedia 00 (2020) 000–000

www.elsevier.com / locate / procedia www.elsevier.com / locate / procedia

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Abstract Three-dimensional (3D) printing, formally known as Additive Manufacturing (AM) has been significantly developed and widely used in recent years. Although this manufacturing process was utilized for prototyping, currently it has been used in rapid manufac turing of final products. Therefore, study behavior of 3D-printed parts is a crucial issue. In this context, current study presents the influence of two printing parameters on strength of 3D-printed components. In detail, Polylactic Acid (PLA) material was used in the fabrication of specimens by Fused Deposition Modeling (FDM) process. In this study, two printing parameters (a) raster layup and (b) printing speed were changed in the fabrication of 3D-printed parts. A series of experimental tests were conducted to show e ff ects of the mentioned printing parameters on sti ff ness and strength of the examined components. The obtained results showed sti ff ness and strength depend on raster angle. In detail, highest and lowest strength have been achieved for 0 ◦ and 90 ◦ raster angles, respectively. The documented results can be used for future research studies and next computational models. c 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativec mmons.org / licenses / by-nc-nd / 4.0 / ) P er-review under responsibility of the European Structural Integr ty Society (ESIS) ExCo. Keywords: Additive manufacturing; printing parameters; strength; fracture 1st Virtual European Conference on Fracture E ff ects of raster layup and printing speed on strength of 3D-printed structural components Mohammad Reza Khosravani ∗ , Tamara Reinicke Chair of Product Development, University of Siegen, Paul-Bonatz-Str. 9-11, 57068 Siegen, Germany Abstract Three-dimensional (3D) printing, formally known as Additive Manufacturing (AM) has been significantly developed and widely used in recent years. Although this manufacturing process was utilized for prototyping, currently it has been used in rapid manufac turing of final products. Therefore, study behavior of 3D-printed parts is a crucial issue. In this context, current study presents the influence of two printing parameters on strength of 3D-printed components. In detail, Polylactic Acid (PLA) material was used in the fabrication of specimens by Fused Deposition Modeling (FDM) process. In this study, two printing parameters (a) raster layup and (b) printing speed were changed in the fabrication of 3D-printed parts. A series of experimental tests were conducted to show e ff ects of the mentioned printing parameters on sti ff ness and strength of the examined components. The obtained results showed sti ff ness and strength depend on raster angle. In detail, highest and lowest strength have been achieved for 0 ◦ and 90 ◦ raster angles, respectively. The documented results can be used for future research studies and next computational models. c 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo. Keywords: Additive manufacturing; printing parameters; strength; fracture 1st Virtual European Conference on Fracture E ff ects of raster layup and printing speed on strength of 3D-printed structural components Mohammad Reza Khosravani ∗ , Tamara Reinicke Chair of Product Development, University of Siegen, Paul-Bonatz-Str. 9-11, 57068 Siegen, Germany

1. Introduction 1. Introduction

Additive Manufacturing (AM) technology has been used for fabrication of components from three-dimensional (3D) models. This technology was introduced as a rapid prototyping method which can be used for a wide range of materials. Although AM was used for prototyping, currently it is being used for fabrication of final products Mu¨ ller and Westka¨mper (2018). AM has been defined as the process of joining materials from 3D model data. Several terms synonymously used to AM, such as 3D printing, rapid prototyping, direct digital manufacturing, and additive fabrication Williams (2016). 3D printing provides solutions for fabrication of geometrically complex parts in a short period of time compared to traditional manufacturing processes. Moreover, 3D printing can be customized based on the requirements. These advantages and innovations in this field, provided a wide range of applications for 3D Additive Manufacturing (AM) technology has been used for fabrication of components from three-dimensional (3D) models. This technology was introduced as a rapid prototyping method which can be used for a wide range of materials. Although AM was used for prototyping, currently it is being used for fabrication of final products Mu¨ ller and Westka¨mper (2018). AM has been defined as the process of joining materials from 3D model data. Several terms synonymously used to AM, such as 3D printing, rapid prototyping, direct digital manufacturing, and additive fabrication Williams (2016). 3D printing provides solutions for fabrication of geometrically complex parts in a short period of time compared to traditional manufacturing processes. Moreover, 3D printing can be customized based on the requirements. These advantages and innovations in this field, provided a wide range of applications for 3D

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo 10.1016/j.prostr.2020.10.083 ∗ Corresponding author. E-mail address: mohammadreza.khosravani@uni-siegen.de 2210-7843 c 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo. ∗ Corresponding author. E-mail address: mohammadreza.khosravani@uni-siegen.de 2210-7843 c 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo.