bei Google ScholarTitelangaben
Flauder, Stefan ; Langhof, Nico ; Krenkel, Walter ; Schafföner, Stefan:
Size effect of carbon fiber-reinforced silicon carbide composites (C/C-SiC) : Part 1 – bending load and statistical effects.
In: Journal of the European Ceramic Society.
Bd. 41
(2021)
Heft 14
.
- S. 6805-6814.
ISSN 0955-2219
DOI: https://doi.org/10.1016/j.jeurceramsoc.2021.07.040
Abstract
This study analyzed the influence of the sample volume, number of tested specimen, and testing method on the
flexural strength of fabric-reinforced ceramic matrix composites. For this purpose, seven different batches of C/CSiC
were prepared with four different sample thicknesses to determine the flexural strengths and Weibull moduli
by three- and four-point flexural tests. The result showed that C/C-SiC exhibits a size effect of strength under
bending load because a decrease of measured flexural strength with increased specimen size was observed. This
size effect was discussed regarding the Weibull weakest link approach and the concept of quasi-brittle materials.
The determined Weibull moduli were comparable for the same load condition but dissimilar for the identical
material if the load condition were changed from three- to four-point bending. Hence, the Weibull modulus was
found to be not an inherent material constant for C/C-SiC and the Weibull weakest link approach seems not
appropriate.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Ceramic matrix composites (CMC); Bending test; Weibull statistics; C/C-SiC; Size effect of strength |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Keramische Werkstoffe Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Keramische Werkstoffe > Lehrstuhl Keramische Werkstoffe - Univ.-Prof. Dr.-Ing. Stefan Schafföner Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 29 Nov 2021 08:30 |
| Letzte Änderung: | 29 Nov 2021 08:30 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/68017 |