PSI - Issue 47

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 47 (2023) 888–891

27th International Conference on Fracture and Structural Integrity (IGF27) Correlation between fabric orientation with defects formation and shearing in Taffeta preforming

Aghiles Khris a , Samir Allaoui b , Mohand Ould Ouali a, * a Laboratory LEC2M, Mouloud MAMMERI University of Tizi Ouzou, 15000, Algeria b ITheMM (EA 7548) Université de Reims Champagne-Ardenne, France

© 2023 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 IGF27 chairpersons Abstract The increasing complexity of composite parts in order to satisfy manufacturers' requirements and environmental standards makes the study of defects in fabrics during shaping a subject of great interest for academics and industrialists. In this work, we are interested in the study of the effect of the fabric orientation on the creation of defects during forming of a Taffeta rowing 500. Two orientations have been considered 22.5° and 45°. The tool with a rectangular shape has an angle of attack of a ridge inclined by an angle. The experimental tests were realized on a specific device, designed and built in our laboratory. To complete the study we have used two values of blank-holder pressure with two different configurations of the springs. The analysis of the formed defects and the shearing between warp and weft showed the influence of the orientation of the taffeta and the applied pressure. © 2023 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 IGF27 chairpersons Keywords: Fabric forming; orientation; defects; Taffeta; pressure; shearing.

1. Introduction The growing use of composite materials in different industries is pushing more and more researchers to take an interest in improving their properties, particularly mechanical ones, such as mechanical strength, energy absorption, formability, see for instance, Abdul-Latif et al. (2017), Allaoui et al. (2014). Among the aspects addressed in this approach to improving the behavior of composites is the study of the defects that are created in the preforms intended

* Corresponding author. Tel.: + 213 770.239.178 E-mail address: mohand.ouldouali@ummto.dz

2452-3216 © 2023 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 IGF27 chairpersons

2452-3216 © 2023 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 IGF27 chairpersons 10.1016/j.prostr.2023.07.030