Modeling granular materials: century-long research across scales

F Radjai, JN Roux, A Daouadji - Journal of engineering mechanics, 2017 - ascelibrary.org
Granular materials are the most recurrent form of solid-state matter on Earth. They challenge
researchers and engineers in various fields not only because they occur with a broad variety …

Clay hypoplasticity with explicitly defined asymptotic states

D Mašín - Acta Geotechnica, 2013 - Springer
A new rate-independent hypoplastic model for clays is developed. The model is based on
the recently proposed approach enabling explicit incorporation of the predefined asymptotic …

A basic hypoplastic constitutive model for sand

W Wu, J Lin, X Wang - Acta Geotechnica, 2017 - Springer
Hypoplastic constitutive models are based on nonlinear tensor functions and are
characterized by simple formulation and few parameters. In its early stage, mainly basic …

ISA model: a constitutive model for soils with yield surface in the intergranular strain space

W Fuentes, T Triantafyllidis - International Journal for Numerical …, 2015 - Wiley Online Library
In this article, a new constitutive model for soils is proposed. It is formulated by means of
plasticity, but in contrast to the precedent works, it presents a yield function describing a …

On the simulation of multidimensional cyclic loading with intergranular strain

M Poblete, W Fuentes, T Triantafyllidis - Acta Geotechnica, 2016 - Springer
A sample of soil is subjected to multidimensional cyclic loading when two or three principal
components of the stress or strain tensor are simultaneously controlled to perform a …

[HTML][HTML] Hypoplastic model with an inner memory surface for sand under cyclic loading

MJ Alipour, W Wu - Computers and Geotechnics, 2023 - Elsevier
We propose a hypoplastic model for granular soil using the memory surface notion to
consider the stress history. This paper aims to resolve the limitations of the hypoplastic …

An ISA-plasticity-based model for viscous and non-viscous clays

W Fuentes, M Tafili, T Triantafyllidis - Acta Geotechnica, 2018 - Springer
The ISA-plasticity is a mathematical platform which allows to propose constitutive models for
soils under a wide range of strain amplitudes. This formulation is based on a state variable …

Prediction of flow liquefaction instability of clean and silty sands

A Lashkari - Acta Geotechnica, 2016 - Springer
Adding a small amount of non-plastic silt to clean sands may lead to dramatic loss of shear
strength and a noteworthy tendency toward contraction when the mechanical behavior of the …

A critical state constitutive model for clean and silty sand

X Wei, J Yang - Acta Geotechnica, 2019 - Springer
The mechanical behavior of silty sand is highly dependent on the percentage of fines in
addition to the packing density and confining pressure. Properly modeling the diverse …

Micropolar hypoplasticity for persistent shear band in heterogeneous granular materials

J Lin, W Wu, RI Borja - Computer Methods in Applied Mechanics and …, 2015 - Elsevier
Persistent shear bands in heterogeneous materials develop progressively, rather than
instantaneously. For a meaningful capture of this deformation pattern, the band must …