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Thermal and mechanical response of industrial porous ceramics
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Bruno, Giovanni, Efremov, Alexander M., Levandovskiy, Andrey N., Pozdnyakova, Irina, Hughes, Darren J. and Clausen, Bjørn (2010) Thermal and mechanical response of industrial porous ceramics. Materials Science Forum, Vol.652 . pp. 191-196. doi:10.4028/www.scientific.net/MSF.652.191 ISSN 1662-9752.
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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.6...
Abstract
In this study, the mechanical behavior of porous thermally microcracked ceramics has been compared with that of solely porous materials, under compressive applied stress. The different aspects of the micro and macroscopic stress-strain curves have been inserted into a coherent analytical model and compared with finite element modeling calculations. The agreement between experiments and models is very good. It is shown that mechanical microcracking, as opposed to thermal, introduces an irreversible aspect in the deformation mechanisms of porous ceramics. In this concern, mechanical loads differentiate themselves from thermal cycling. This leads for instance to a change of the Young’s modulus as a function of applied load, which qualifies those materials as visco-elastic.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Journal or Publication Title: | Materials Science Forum | ||||
| Publisher: | Trans Tech Publications Ltd. | ||||
| ISSN: | 1662-9752 | ||||
| Official Date: | 2010 | ||||
| Dates: |
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| Volume: | Vol.652 | ||||
| Number of Pages: | 6 | ||||
| Page Range: | pp. 191-196 | ||||
| DOI: | 10.4028/www.scientific.net/MSF.652.191 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Version or Related Resource: | This item was also presented at the 5th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation, Mito, Japan, Nov 10-12, 2009. |
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