A micropolar anisotropic constitutive model of cancellous bone from discrete homogenization
Cosserat models of cancellous bone are constructed, relying on micromechanical
approaches in order to investigate microstructure-related scale effects on the macroscopic …
approaches in order to investigate microstructure-related scale effects on the macroscopic …
A DEM study on the effective thermal conductivity of granular assemblies
A discrete element method (DEM) is developed to simulate the heat transfer in granular
assemblies in vacuum with consideration of the thermal resistance of rough contact …
assemblies in vacuum with consideration of the thermal resistance of rough contact …
Granular stresses in granular flows subjected to different obstacles
YC Chung - International Journal of Mechanical Sciences, 2023 - Elsevier
Although the application and development of continuum approaches demonstrate immense
promise to model granular flows, the assumption of isotropic stress state in a constitutive law …
promise to model granular flows, the assumption of isotropic stress state in a constitutive law …
[HTML][HTML] Continuum modeling of periodic brickwork
Continuum models of periodic masonry brickwork, viewed at a micro-level as a discrete
system, are identified within the frame of linearized elasticity. The accuracy of various …
system, are identified within the frame of linearized elasticity. The accuracy of various …
Granular micromechanics based continuum model for grain rotations and grain rotation waves
Grain rotations are a key component of the grain-scale deformation kinematics of granular
materials. For describing the deformation of these materials at large length scales …
materials. For describing the deformation of these materials at large length scales …
[HTML][HTML] A micro–macro homogenization approach for discrete particle assembly–Cosserat continuum modeling of granular materials
X Li, Q Liu, J Zhang - International Journal of Solids and Structures, 2010 - Elsevier
Based on Hill's lemma for classical Cauchy continuum, a version of Hill's lemma for micro–
macro homogenization modeling of Cosserat continuum is derived. The derived admissible …
macro homogenization modeling of Cosserat continuum is derived. The derived admissible …
Simulation of strain localization with discrete element-Cosserat continuum finite element two scale method for granular materials
H Tang, Y Dong, T Wang, Y Dong - Journal of the Mechanics and Physics …, 2019 - Elsevier
A multiscale method is proposed based on an individual particle provided with rotational
freedom, which considers the kinematic connections and transformation consistency of …
freedom, which considers the kinematic connections and transformation consistency of …
Criteria for static equilibrium in particulate mechanics computations
The underlying physics of granular matter can be clearly solved using particulate mechanics
methods, eg the discrete element method (DEM) that is inherently discontinuous and …
methods, eg the discrete element method (DEM) that is inherently discontinuous and …
A bridging scale method for granular materials with discrete particle assembly–Cosserat continuum modeling
X Li, K Wan - Computers and Geotechnics, 2011 - Elsevier
Based on the bridging scale method (BSM) initially presented in nano mechanics [1, 2], a
new version of the BSM that couples discrete particle assembly modeling using the discrete …
new version of the BSM that couples discrete particle assembly modeling using the discrete …
Generalized multiscale finite element method for a nonlinear elastic strain-limiting Cosserat model
For nonlinear Cosserat elasticity, we consider multiscale methods in this paper. In particular,
we explore the generalized multiscale finite element method (GMsFEM) to solve an isotropic …
we explore the generalized multiscale finite element method (GMsFEM) to solve an isotropic …