Convergence of rotational hardening with bounds in clay plasticity

0510886 - ÚT 2021 RIV GB eng J - Journal Article
Dafalias, Yannis F. - Taiebat, M. - Rollo, F. - Amorosi, A.
Convergence of rotational hardening with bounds in clay plasticity.
Geotechnique Letters. Roč. 10, č. 1 (2020), s. 16-19. ISSN 2049-825X. E-ISSN 2045-2543
R&D Projects: GA MŠMT(CZ) EF15_003/0000493
Institutional support: RVO:61388998
Keywords : anisotropy * clays * constitutive relations
OECD category: Materials engineering
Impact factor: 2.462, year: 2020
Method of publishing: Limited access
https://www.icevirtuallibrary.com/doi/10.1680/jgele.19.00012

Convergence of the rotational hardening variable α used in the anisotropic models of clay plasticity, with a constitutively defined attractor/bound αb(η), function of the stress ratio η, under fixed η loading, is analytically investigated. It is analytically shown that depending on various parameters of the rate equation of the evolution of α, such convergence may or may not occur despite the apparent necessity of convergence stemming from the form of the evolution equation of α.
Permanent Link: http://hdl.handle.net/11104/0310380