PSI - Issue 28

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 28 (2020) 1719–1726

© 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 The present paper analyzes manufacturing density effect on the mechanical properties of three-dimensional (3D) printed ABS specimens. Indeed, the optimum density of the printed specimens is investigated to reach the extruded specimens’ characteristics. Then, the mechanical properties such as the tensile strength, the Young’s modulus, the ultimate tensile and yield strength, the ductility and fracture toughness are identified and compared. Furthermore, we study crosshead speed effect on printed samples with an infill rate of 100% towards crack propagation. Subsequently, the stress intensity factor is determined. The results indicate a considerable effect of the density and the filling rate on tensile properties and on the rupture propagation. © 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 Keywords: 3D printer; tensile test; ABS; SENT; Stress intensity factor. 1. Introduction Additive manufacturing (AM) or 3D printing is a methodology, based on computer-aided design (CAD) models, that fabricates layers by layers 3D haptic physical models with unique structure and various properties. J.W. Stansbury 1st Virtual European Conference on Fracture Mechanical behavior and crack propagation of ABS 3D printed specimens Fatima Majid a, * , Najat Zekeriti a ,Rajaa rhanim b , , Mohammed Lahlou c , Hassan rhanim a , Brahim Mrani a a Laboratory of Nuclear, Atomic, Molecular, Mechanical and Energetic Physics, FSJ, University Chouaib Doukkali, El jadida, Morocco. b Laboratory Study of Advanced Materials and Application, University Moulay Smail, Meknes, Morocco. c LabSIPE, ENSAJ, University chouaib Doukkali, EL Jadida, Morocco. . Brahim

* Corresponding author. Tel.: +212 663 49 90 78; E-mail address: majidfatima9@gmail.com

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

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.2020.10.147