Rezaei, Ehsan and Bianchi, Giovanni and Gianella, Sandro and Ortona, Alberto (2014) On the nonlinear mechanical behavior of macroporous cellular ceramics under bending. Journal of the European Ceramic Society, 34 (10). pp. 2133-2141. ISSN 0955-2219
Full text not available from this repository.Abstract
This work presents the results of an experimental work on the mechanical behavior under bending of Si–SiC reticulated foams. Particularly it is here studied a transient regime after their linear elastic behavior and before their catastrophic failure. During this regime part of the mechanical work is dissipated by local struts failure. This behavior is interesting because, if well understood, could give important information on the prediction of reticulated ceramics’ life time. Besides load cell and deflection readings, acoustical emission and electrical resistance were also recorded during the tests. Data were further processed using Weibull statistics. Results: evidence that the duration and effects of this regime strongly depend on ligaments’ microstructure and thus on the manufacturing technique. A correlation with the average acoustical events per sample and the Weibull modulus is also evidenced.
| Item Type: | Scientific journal article, Newspaper article or Magazine article |
|---|---|
| Uncontrolled Keywords: | Cellular ceramics; Nonlinear mechanical behavior; Silicon carbide; Acoustical emission; Electrical resistance monitoring |
| Subjects: | Physical sciences > Materials science |
| Depositing User: | Alberto Ortona |
| Date Deposited: | 19 Jan 2015 15:29 |
| Last Modified: | 06 Jul 2016 14:55 |
| URI: | http://repository.supsi.ch/id/eprint/5887 |
Actions (login required)
 |
View Item |