PSI - Issue 42

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 il l li t . i i t. Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia . l i r. /l t / r i

ScienceDirect

Procedia Structural Integrity 42 (2022) 196–201

© 2022 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 scientific committee of the 23 European Conference on Fracture – ECF23 Abstract High performances in terms of mechanical properties and lightweight are increasingly required to materials, and a solution to meet these requirements is the adoption of innovative hybrid structures made of metallic lattice core and composite material skins. In this work, two different processes are analysed and compared: co-curing and bonding. In the former case, the prepreg layers are laid up directly on the lattice, which acts as a mould. Instead, in the latter case, a composite material laminate is cured alone, and then it is bonded to the core. The aim of the work is to compare the flexural properties of the laminates obtained through the two abovementioned processes. Both types of specimens demonstrated a similar stiffness, but the co-cured one presented a higher strength, with an improvement of about 10%. This finding, coupled with the greater process ease, makes co curing the best technological solution. © 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 23 European Conference on Fracture - ECF23 Keywords: EBM printing; Composite material; Bonding. i i t i l ti li t i t i i l i t t i l , l ti t meet t i t i t ti i ti i t t t lli l tti it t i l i . t is work, two different pro l : i i . t , t l l i i tl t l tti , i t l . t , i t l tt , it t i l l i t i l , t it i t t . i t i t t l l ti t l i t t i t t t ti . t t i t t i il ti , t t t i t t , it i t t . i i i , l it t t , i t t t l i l l ti . t . li l i . . i i ti l t li tt :// ti . /li / / . / i i ilit t : ri ti ; it t ri l; i . 23 European Conference on Fracture - ECF23 Manufacturing process effect on the bending characteristics of titanium-lattice/FRP hybrid structures Costanzo Bellini a *, Rosario Borrelli b , Francesco Di Caprio b , Vittorio Di Cocco a , Stefania Franchitti b , Francesco Iacoviello a , Larisa Patricia Mocanu a , Luca Sorrentino a a Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Cassino, Italy b Manufacturing Processes on Metallic Materials Lab., CIRA, Capua, Italy tructures r b a a t t f i il i l i i , i it f i t i , i , It l b f t i t lli t i l ., I , , It l

* Corresponding author. Tel.: +39 0776 299 3617. E-mail address: Costanzo.bellini@unicas.it i t r. l.: . - il : t . lli i i .it rr

2452-3216 © 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 23 European Conference on Fracture - ECF23 l i r . . i is an open access article under the CC BY-NC-ND lic ( tt :// r ti . r /li / - - / . /) i i ilit t - t r . li

2452-3216 © 2022 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 scientific committee of the 23 European Conference on Fracture – ECF23 10.1016/j.prostr.2022.12.024