This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1016/j.jeurceramsoc.2011.05.021 in citations.
Ring-On-Ring Testing of Thin, Curved Bi-layered Materials
Ring-On-Ring Testing of Thin, Curved Bi-layered Materials
The bi-axial ring-on-ring test is a convenient method to determine elastic modulus and fracture strength of brittle materials in plate geometry. However, standard analytical relationships appear to be limited to flat isotropic samples with discrete ratios of thickness to loading/support ring radii....
Saved in:
Personal Name(s): | Pecanac, G. |
---|---|
Bause, T. / Malzbender, J. | |
Contributing Institute: |
Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | Journal of the European Ceramic Society, 31 (2011) S. 2037 - 2042 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2011
|
Physical Description: |
2037 - 2042 |
DOI: |
10.1016/j.jeurceramsoc.2011.05.021 |
Document Type: |
Journal Article |
Research Program: |
NAnostructured Surface Activated ultra-thin Oxygen Transport Membrane Rationelle Energieumwandlung |
Series Title: |
Journal of the European Ceramic Society
31 |
Subject (ZB): | |
Publikationsportal JuSER |
The bi-axial ring-on-ring test is a convenient method to determine elastic modulus and fracture strength of brittle materials in plate geometry. However, standard analytical relationships appear to be limited to flat isotropic samples with discrete ratios of thickness to loading/support ring radii. In addition to the necessity to consider residual stresses due to differences in thermal expansion for bi-layered materials, the curvature of thin components complicates the analysis of the experimental data. Experimental and finite element modeling results are presented for thin curved bi-layered materials with substrates of different elastic behavior. Basis for the analysis are experimental results obtained for solid oxide fuel cells with anode substrates in oxidized and reduced state. A testing procedure and its limits are outlined that permits to extend the use of standard analytical relationships to curved bi-layered specimens with the aim to determine the properties of the mechanically dominating support material. (C) 2011 Elsevier Ltd. All rights reserved. |