Article (Scientific journals)
Strain-rate-dependent mechanics and impact performance of epoxy-based nanocomposites
Tüfekci, Mertol; Özkal, Burak; Maharaj, Chris et al.
2023In Composites Science and Technology, 233, p. 109870
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Keywords :
Mechanical characterisation; Nanocomposites; Nonlinear behaviour; Numerical simulation; Strain-rate-dependence; Epoxy-based nanocomposites; Fumed silicas; Impact performance; Mechanic performance; Mechanical characterizations; Mechanical impacts; Nonlinear behaviours; Silica nanotubes; Strain rate dependence; Strain-rate-dependent; Ceramics and Composites; Engineering (all)
Abstract :
[en] Strain-rate-dependent mechanical properties and impact performance of manufactured epoxy-based nanocomposites are investigated. As reinforcements, fumed silica (FS) and halloysite nanotube (HNT) are used alongside Albipox 1000 and Nanopox F700. First, the internal structures of the composites are visualised using scanning electron microscopy (SEM). To identify the strain-rate-dependent mechanical properties, three-point bend tests are conducted at three different strain rate levels. For the impact resistance, Charpy impact tests are performed. For further investigations of the mechanical properties of the composites, mean-field homogenisation (MFH) and finite element (FE) analyses on the representative volume elements (RVE) are performed for each type of composite material. Overall, the modelling and experiments are in good agreement and account for the mechanical behaviour of these epoxy-based nanocomposites.
Disciplines :
Mechanical engineering
Author, co-author :
Tüfekci, Mertol;  Department of Mechanical Engineering, Imperial College London, London, United Kingdom
Özkal, Burak;  Department of Metallurgical and Materials Engineering, Istanbul Technical University, Istanbul, Turkey
Maharaj, Chris;  Department of Mechanical and Manufacturing Engineering, The University of the West Indies, St. Augustine, Trinidad and Tobago
Liu, Haibao;  Centre for Aeronautics, Cranfield University, Cranfield, United Kingdom
Dear, John P.;  Department of Mechanical Engineering, Imperial College London, London, United Kingdom
Salles, Loïc  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Mechanical aspects of turbomachinery and aerospace propulsion ; Department of Mechanical Engineering, Imperial College London, London, United Kingdom
Language :
English
Title :
Strain-rate-dependent mechanics and impact performance of epoxy-based nanocomposites
Publication date :
March 2023
Journal title :
Composites Science and Technology
ISSN :
0266-3538
eISSN :
1879-1050
Publisher :
Elsevier Ltd
Volume :
233
Pages :
109870
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
Mertol Tüfekci would like to acknowledge the support of the Scientific and Technological Research Council of Turkey (TUBITAK) (fund BİDEB 2213 2016/2 ) that makes this research possible.Mertol Tüfekci would like to acknowledge the support of the Scientific and Technological Research Council of Turkey (TUBITAK) (fund BİDEB 2213 2016/2) that makes this research possible. The authors would like to thank Evonik for the courtesy of providing materials and Dr.Dr.-Ing. Stephan Sprenger for his helpful guidance. The authors would also like to acknowledge computational resources and support provided by the Imperial College Research Computing Service ( http://dx.doi.org/10.14469/hpc/2232).
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