Wang, Z. and Li, P. (2015) Characterisation of dynamic behaviour of alumina ceramics: evaluation of stress uniformity. AIP Advances, 5(10), 107224. (doi: 10.1063/1.4934793)
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Abstract
Accurate characterisation of dynamic behaviour of ceramics requires the reliable split-Hopkinson pressure bar (SHPB) technique and the condition of uniaxial homogeneous specimen deformation. In this study, an experimentally validated 3D finite element model of the full scale SHPB experiment was developed to quantitatively evaluate the wave propagation in the bars and the stress distribution/evolution in the alumina specimen. Wave signals in both the SHPB experiments and the finite element model were analysed to characterise the dynamic behaviour of alumina. It was found that the equilibrium of both stresses within the specimen and forces at the specimen ends can be established in the intermediate stage of deformation. The validity of stress uniformity in the alumina specimen supports the assumption of uniaxial homogeneous specimen deformation in the SHPB and validates the characterisation of dynamic behaviour of alumina ceramics.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Li, Dr Peifeng |
Authors: | Wang, Z., and Li, P. |
College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
Journal Name: | AIP Advances |
Publisher: | American Institute of Physics |
ISSN: | 2158-3226 |
ISSN (Online): | 2158-3226 |
Published Online: | 23 October 2015 |
Copyright Holders: | Copyright © 2015 The Authors |
First Published: | First published in AIP Advances 5(10): 107224 |
Publisher Policy: | Reproduced under a Creative Commons license |
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