TY - JOUR
T1 - Effects of hybridization and ply thickness on the strength and toughness of composite laminates
AU - Danzi, F.
AU - Tavares, Rodrigo Paiva
AU - Xavier, José
AU - Fanteria, D.
AU - Camanho, Camanho, Pedro P.
N1 - info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F115872%2F2016/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00667%2F2020/PT#
Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: RPT acknowledges the support of the Portuguese Government’s Fundação para a Ciência e Tecnologia, under the Grant SFRH/BD/115872/2016. RPT and PPC would like to thank the financial support provided by FCT – Fundação para a Ciência e a Tecnologia through National Funds in the scope of project MITP-TB/PFM/0005/2013. JX acknowledges Fundação para a Ciência e Tecnologia (FCT - MCTES) for its financial support via the project UIDB/00667/2020 (UNIDEMI).
PY - 2021/12
Y1 - 2021/12
N2 - This work presents the results of an experimental study performed in carbon/epoxy composite materials manufactured using a ply-level hybridization technique. The aim of the study is to investigate the potential of such hybridization technique to promote pseudo-ductile failure, and to enhance fracture toughness. Two thin-ply carbon-epoxy systems and three different carbon-carbon hybrid lay-ups are considered. Both strength and fracture tests are performed on the manufactured laminates and the properties of the hybrid materials are compared to those of the baseline non-hybrid composites. Digital Image Correlation and post-mortem X-ray imaging are used to analyze the fracture process of the different materials. The comparison of the mechanical response of the different materials demonstrates that, by means of thin ply hybridization, a pseudo-ductile failure in tension can be obtained, associated with fibre fragmentation. However, the hybridization seems not to be responsible for the increased fracture toughness that is ascribable to the ply-thickness effect.
AB - This work presents the results of an experimental study performed in carbon/epoxy composite materials manufactured using a ply-level hybridization technique. The aim of the study is to investigate the potential of such hybridization technique to promote pseudo-ductile failure, and to enhance fracture toughness. Two thin-ply carbon-epoxy systems and three different carbon-carbon hybrid lay-ups are considered. Both strength and fracture tests are performed on the manufactured laminates and the properties of the hybrid materials are compared to those of the baseline non-hybrid composites. Digital Image Correlation and post-mortem X-ray imaging are used to analyze the fracture process of the different materials. The comparison of the mechanical response of the different materials demonstrates that, by means of thin ply hybridization, a pseudo-ductile failure in tension can be obtained, associated with fibre fragmentation. However, the hybridization seems not to be responsible for the increased fracture toughness that is ascribable to the ply-thickness effect.
KW - carbon fibre
KW - hybrid
KW - mechanical properties
KW - Polymer matrix composites
KW - thin-ply
UR - http://www.scopus.com/inward/record.url?scp=85115622071&partnerID=8YFLogxK
U2 - 10.1177/00219983211041762
DO - 10.1177/00219983211041762
M3 - Article
AN - SCOPUS:85115622071
SN - 0021-9983
VL - 55
SP - 4601
EP - 4616
JO - Journal of Composite Materials
JF - Journal of Composite Materials
IS - 30
ER -