Backlash: a feature of the cyclic deformation of ceramic pastes

Autor:	S.A. Nixon, H.W. Chandler, S. D. George, J. Liddle
Rok vydání:	2000
Předmět:	Materials science Tension (physics) Capillary action Bauschinger effect Plasticity Granular material Rheology visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Composite material Deformation (engineering)
Zdroj:	Journal of the European Ceramic Society. 20:1699-1705
ISSN:	0955-2219
DOI:	10.1016/s0955-2219(00)00054-6
Popis:	This paper offers a mathematical model to explain the rather peculiar results obtained in the cyclic tension–compression tests on various stiff ceramic pastes. The experimental results indicate a material with low strength in the middle of the cycle, rapidly strengthening at the extremes. Additionally there is a pronounced Bauschinger effect on strain reversal. The mathematical model is based on a previously published model for dry granular materials. This was specifically designed to simulate cyclic deformation, but a modification to include capillary tension allows excellent agreement between the simulation and experimental results on pastes. This demonstrates that the mechanics of granular materials is the appropriate basis for modelling these and similar materials rather than modified polymer rheology.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::472079db82e90772643a4d8ad907a878 https://doi.org/10.1016/s0955-2219(00)00054-6 Zobrazit plný text záznamu Full Text from ScienceDirect