PSI - Issue 52

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

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

Procedia Structural Integrity 52 (2024) 340–347

© 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 Professor Ferri Aliabadi Abstract This paper is focused on the investigation from both a numerical and experimental perspective of the mechanical behavior of fiber reinforced composite specimens subjected to low velocity impacts. The main purpose is to develop a solid numerical model able to accurately simulate the mechanical response of the composite laminates after the impact. The test specimen is a typical 24 plies CAI (100×150 mm 2 ). The experimental tests have been carried out at the Italian Aerospace Research Centre “CIRA” following the guidelines of the standard designation D 7136/D 7136M – 07. The numerical models have been implemented in Abaqus environment considering increasing levels of complexity, in order to identify the best parameters setup for an accurate simulation of the impact phenomenon. © 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 Professor Ferri Aliabadi Keywords: Composite materials; Finite element analysis; Experimental tests; Impact analysis. 1. Introduction Composite materials have become increasingly popular in recent years due to their ability to provide low density, high weight-specific stiffness, and strength [1-4]. Laminate is the collection of laminae stacked to achieve the desired Fracture, Damage and Structural Health Monitoring A Numerical and Experimental Investigation on the Mechanical Response of Composite Specimens Subjected to Low Velocity Impacts Valerio Acanfora a, *, Andrea Sellitto a , Francesco Di Caprio b , Marco Mallardo a , Aniello Riccio a a University of Campania “Luigi Vanvitelli”, Department of Engineering, via Roma, 29, Aversa (CE), 81031, Italy b CIRA (Italian Aerospace Research Centre), via Maiorise snc, Capua (CE), 81043, Italy Abstract This paper is focused on the investigation from both a numerical and experimental perspective of the mechanical behavior of fiber reinforced composite specimens subjected to low velocity impacts. The main purpose is to develop a solid numerical model able to accurately simulate the mechanical response of the composite laminates after the impact. The test specimen is a typical 24 plies CAI (100×150 mm 2 ). The experimental tests have been carried out at the Italian Aerospace Research Centre “CIRA” following the guidelines of the standard designation D 7136/D 7136M – 07. The numerical models have been implemented in Abaqus environment considering increasing levels of complexity, in order to identify the best parameters setup for an accurate simulation of the impact phenomenon. © 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 Professor Ferri Aliabadi Keywords: Composite materials; Finite element analysis; Experimental tests; Impact analysis. 1. Introduction Composite materials have become increasingly popular in recent years due to their ability to provide low density, high weight-specific stiffness, and strength [1-4]. Laminate is the collection of laminae stacked to achieve the desired Fracture, Damage and Structural Health Monitoring A Numerical and Experimental Investigation on the Mechanical Response of Composite Specimens Subjected to Low Velocity Impacts Valerio Acanfora a, *, Andrea Sellitto a , Francesco Di Caprio b , Marco Mallardo a , Aniello Riccio a a University of Campania “Luigi Vanvitelli”, Department of Engineering, via Roma, 29, Aversa (CE), 81031, Italy b CIRA (Italian Aerospace Research Centre), via Maiorise snc, Capua (CE), 81043, Italy

* Corresponding author. Tel.: +39 081 5010 407. E-mail address: valerio.acanfora@unicampania.it * Corresponding author. Tel.: +39 081 5010 407. E-mail address: valerio.acanfora@unicampania.it

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 Professor Ferri Aliabadi 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 Professor Ferri Aliabadi

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 Professor Ferri Aliabadi 10.1016/j.prostr.2023.12.033