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oai:recercat.cat:10256/260542025-02-04T00:07:03Zcom_2072_452955com_2072_2054col_2072_453061

Effect of ply thickness and ply level hybridization on the compression after impact strength of thin laminates Sasikumar, Aravind Trias Mansilla, Daniel Costa i Balanzat, Josep Blanco Villaverde, Norbert Orr, Jessica Linde, Peter Ministerio de Economía y Competitividad (Espanya) Mecànica de fractura Materials compostos Materials laminats Assaigs de materials Fracture mechanics Composite materials Laminated materials Materials -- Testing There is a lack of research available on how thin laminates respond to impact and post impact loads, even though thin structures are used in present-day aircrafts. This experimental paper employs thick, standard and thin uni-directional plies to investigate the effect ply thickness has on thin laminates on their impact and compression after impact (CAI) response. Further, we propose two hybrid laminates where thick or standard plies are mixed with thin plies, respectively, in an effort to improve the CAI strength of thin laminates. Results reveal that, contrary to thick laminates, thin laminates made of only thin plies exhibit extensive fibre failure, leading to a considerably reduced CAI strength. Moreover, the hybrid laminate where thick 0° plies are mixed with thin plies improves the CAI strength by 40% over the thin ply baseline laminate. Thus, hybridization with thin laminates appears to be an economic prospective in terms of improving damage tolerance The first author would like to thank the Generalitat de Catalunya for the FI-DGR pre-doctoral grant (2017 FI-B1 00089). The authors would like to thank the Spanish Ministerio de Economía y Competitividad for the grant coded MAT2015-69491-C3-1-R, supported by FEDER/EU 2019-06 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion peer-reviewed http://hdl.handle.net/10256/26054 http://hdl.handle.net/10256/26054 eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.compositesa.2019.03.022 info:eu-repo/semantics/altIdentifier/issn/1359-835X info:eu-repo/semantics/altIdentifier/eissn/1878-5840 MAT2015-69491-C3-1-R info:eu-repo/grantAgreement/MINECO//MAT2015-69491-C3-1-R/ES/HIBRIDACION LOCAL DE MATERIALES COMPUESTOS LAMINADOS PARA MEJORAR SU TOLERANCIA AL DAÑO/ Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess 12 p. application/pdf Elsevier © Composites. Part A, Applied science and manufacturing, 2019, vol. 121, p. 232-243 Articles publicats (D-EMCI) Sasikumar, Aravind Trias Mansilla, Daniel Costa i Balanzat, Josep Blanco Villaverde, Norbert Orr, Jessica Linde, Peter 2019 Effect of ply thickness and ply level hybridization on the compression after impact strength of thin laminates Composites. Part A, Applied science and manufacturing 121 232 243