Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/25611

Title: Assessing stiffness of nanofibres in bacterial cellulose hydrogels: Numerical-experimental framework
Authors: Gao, Xing
Sozumert, Emrah
Shi, Zhijun
Yang, Guang
Silberschmidt, Vadim V.
Keywords: Stiffness
Hydrogel
Nanofibre
Bacterial cellulose
Issue Date: 2017
Publisher: © Elsevier
Citation: GAO, X. ... et al, 2017. Assessing stiffness of nanofibres in bacterial cellulose hydrogels: Numerical-experimental framework. Materials Science and Engineering C, 77, pp. 9-18.
Abstract: This work presents a numerical-experimental framework for assessment of stiffness of nanofibres in a fibrous hydrogel – bacterial cellulose (BC) hydrogel – based on a combination of in-aqua mechanical testing, microstructural analysis and finite-element (FE) modelling. Fibrous hydrogels attracted growing interest as potential replacements to some tissues. To assess their applicability, a comprehensive understanding of their mechanical response under relevant conditions is desirable; a lack of such knowledge is mainly due to changes at microscale caused by deformation that are hard to evaluate in-situ because of the dimensions of nanofibres and aqueous environment. So, discontinuous FE simulations could provide a feasible solution; thus, properties of nanofibres could be characterised with a good accuracy. An alternative – direct tests with commercial testing systems – is cumbersome at best. Hence, in this work, a numerical-experimental framework with advantages of convenience and relative easiness in implementation is suggested to determine the stiffness of BC nanofibres. The obtained magnitudes of 53.7–64.9 GPa were assessed by calibrating modelling results with the original experimental data.
Description: This paper is closed access until 27th March 2018.
Sponsor: The authors would like to acknowledge the 7th European Community Framework Programme for financial support through a Marie Curie International Research Staff Exchange Scheme (IRSES) Project entitled “Micro-Multi-Material Manufacture to Enable Multifunctional Miniaturised Devices (M6)” (Grant No. PIRSES-GA-2010-269113). Additional support from China-European Union Technology Cooperation Programme (Grant No. 1110) is also acknowledged.
Version: Accepted for publication
DOI: 10.1016/j.msec.2017.03.231
URI: https://dspace.lboro.ac.uk/2134/25611
Publisher Link: http://dx.doi.org/10.1016/j.msec.2017.03.231
ISSN: 0928-4931
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

Files associated with this item:

File Description SizeFormat
MSEC 2017 for LUPIN.pdfAccepted version4.6 MBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.