Rate dependent but time independent plasticity formulation with application to sand

0582063 - ÚT 2025 RIV GB eng J - Článek v odborném periodiku
Dafalias, Yannis F. - Manzari, M.T.
Rate dependent but time independent plasticity formulation with application to sand.
Mechanics Research Communications. Roč. 135, January (2024), č. článku 104242. ISSN 0093-6413. E-ISSN 1873-3972
Grant CEP: GA ČR GA23-05338S
Institucionální podpora: RVO:61388998
Klíčová slova: plasticity * rate-dependent * critical state * sand * cyclic
Obor OECD: Mechanical engineering
Impakt faktor: 2.4, rok: 2022
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S009364132300201X?via%3Dihub

A novel rate dependent but time independent plasticity constitutive framework is proposed by rendering the flow rule and the internal variables evolution equations, appropriate functions of the strain rate, while maintaining a rate independent yield surface. This new framework is applied to a full-fledged rate independent and Critical State Theory compatible constitutive model for sands, transforming it into a rate dependent to address the cases where rate dependence is the main interest in comparison with creep and relaxation of secondary importance and manifestation. A qualitative comparison is made with available rate dependent data for sands.
Trvalý link: https://hdl.handle.net/11104/0352815