Email this article Deformation and Fracture of Porous Brittle Materials Under Different Loading Schemes
- Authors: Savchenko N.L.1,2, Sablina T.Y.1, Sevostyanova I.N.1, Buуakova S.P.1,2,3, Kulkov S.N.1,2,3
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Affiliations:
- Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
- National Research Tomsk State Polytechnic University
- National Research Tomsk State University
- Issue: Vol 58, No 11 (2016)
- Pages: 1544-1548
- Section: Article
- URL: https://journals.rcsi.science/1064-8887/article/view/236808
- DOI: https://doi.org/10.1007/s11182-016-0680-4
- ID: 236808
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Abstract
The behavior of alumina and zirconia compression- and shear-test specimens with porosity ranging from 10 to 70% is investigated. Analysis of the stress-strain curves for the materials under study has revealed a transition from a characteristically brittle fracture of fairly dense Al2O3 and ZrO2 specimens to pseudo-plastic fracture for a high porosity level. The ultimate compression strength, effective elastic and shear moduli, and Poisson’s ratio are found to decrease with increase in the pore space volume of the ceramic specimens, which is shown to correlate with development of strain-induced multiple cracking of the materials.
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About the authors
N. L. Savchenko
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State Polytechnic University
Author for correspondence.
Email: savnick@ispms.tsc.ru
Russian Federation, Tomsk; Tomsk
T. Yu. Sablina
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
Email: savnick@ispms.tsc.ru
Russian Federation, Tomsk
I. N. Sevostyanova
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
Email: savnick@ispms.tsc.ru
Russian Federation, Tomsk
S. P. Buуakova
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State Polytechnic University; National Research Tomsk State University
Email: savnick@ispms.tsc.ru
Russian Federation, Tomsk; Tomsk; Tomsk
S. N. Kulkov
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk State Polytechnic University; National Research Tomsk State University
Email: savnick@ispms.tsc.ru
Russian Federation, Tomsk; Tomsk; Tomsk
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