| dc.contributor.author | O'Brien, CT | |
| dc.contributor.author | Li, Z | |
| dc.contributor.author | Liu, M | |
| dc.contributor.author | Robert Innes, J | |
| dc.contributor.author | Li, S | |
| dc.contributor.author | Papageorgiou, DG | |
| dc.contributor.author | Storm, M | |
| dc.contributor.author | Burnett, TL | |
| dc.contributor.author | Young, RJ | |
| dc.date.accessioned | 2024-07-31T13:59:11Z | |
| dc.date.available | 2024-07-31T13:59:11Z | |
| dc.date.issued | 2024-05-13 | |
| dc.identifier.citation | Conor T. O'Brien, Zheling Li, Mufeng Liu, J. Robert Innes, Suhao Li, Dimitrios G. Papageorgiou, Malte Storm, Timothy L. Burnett, Robert J. Young, The role of cavitation in the toughening of elastomer nanocomposites reinforced with graphene nanoplatelets, Composites Part A: Applied Science and Manufacturing, Volume 184, 2024, 108269, ISSN 1359-835X, https://doi.org/10.1016/j.compositesa.2024.108269. (https://www.sciencedirect.com/science/article/pii/S1359835X24002665) Abstract: The toughening of different types of elastomers through the incorporation of graphene nanoplatelets (GNPs) has been investigated. Both the tear strength and tearing energy are increased significantly through a combination of mechanisms such as debonding, pull-out and cavitation. The processes that occur ahead of a tear/crack tip in natural rubber filled with GNPs have been monitored in situ using synchrotron-based nanoscale X-ray computed tomography. The GNP particles are found to debond and form voids that grow under stress leading to considerable energy absorption. The mechanisms of cavitation and void growth are analysed theoretically and it is shown that voids need to be larger than ∼1 μm in size to grow in the triaxial tensile stress field ahead of the tear/crack tip. The high level of cavitation and void growth found for the elastomers filled with micron-sized GNP particles is suggested to be the reason why these nanocomposites have a high tear resistance. Keywords: Nanocomposites; Graphene; Failure; X-ray CT analysis | en_US |
| dc.identifier.issn | 1359-835X | |
| dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/98519 | |
| dc.description.abstract | The toughening of different types of elastomers through the incorporation of graphene nanoplatelets (GNPs) has been investigated. Both the tear strength and tearing energy are increased significantly through a combination of mechanisms such as debonding, pull-out and cavitation. The processes that occur ahead of a tear/crack tip in natural rubber filled with GNPs have been monitored in situ using synchrotron-based nanoscale X-ray computed tomography. The GNP particles are found to debond and form voids that grow under stress leading to considerable energy absorption. The mechanisms of cavitation and void growth are analysed theoretically and it is shown that voids need to be larger than ∼1 μm in size to grow in the triaxial tensile stress field ahead of the tear/crack tip. The high level of cavitation and void growth found for the elastomers filled with micron-sized GNP particles is suggested to be the reason why these nanocomposites have a high tear resistance. | en_US |
| dc.publisher | Elsevier | en_US |
| dc.relation.ispartof | Composites Part A: Applied Science and Manufacturing | |
| dc.rights | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | |
| dc.title | The role of cavitation in the toughening of elastomer nanocomposites reinforced with graphene nanoplatelets | en_US |
| dc.type | Article | en_US |
| dc.rights.holder | © 2024 The Authors. Published by Elsevier Ltd. | |
| dc.identifier.doi | 10.1016/j.compositesa.2024.108269 | |
| pubs.notes | Not known | en_US |
| pubs.publication-status | Accepted | en_US |
| pubs.volume | 184 | en_US |
| rioxxterms.funder | Default funder | en_US |
| rioxxterms.identifier.project | Default project | en_US |
| rioxxterms.funder.project | b215eee3-195d-4c4f-a85d-169a4331c138 | en_US |
