Modeling granular materials: century-long research across scales
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 …
researchers and engineers in various fields not only because they occur with a broad variety …
A poly‐superellipsoid‐based approach on particle morphology for DEM modeling of granular media
Particle morphology plays a key role in affecting physical and mechanical behaviors of
granular media. While various mathematical approaches and shape descriptors have been …
granular media. While various mathematical approaches and shape descriptors have been …
颗粒材料三维应力路径下的接触组构特性
刘嘉英, 周伟, 马刚, 李易奥, 刘其文 - 力学学报, 2019 - lxxb.cstam.org.cn
颗粒材料的宏观应力变形特征与其微观接触力, 组构等紧密相关. 一般而言, 强接触系统属于颗粒
内部体系的传力结构, 其对应的组构张量是影响宏观应力性质的重要因素. 细观数值方法(如离散 …
内部体系的传力结构, 其对应的组构张量是影响宏观应力性质的重要因素. 细观数值方法(如离散 …
Diffuse failure in geomaterials: experiments, theory and modelling
A Daouadji, F Darve, H Al Gali… - … for Numerical and …, 2011 - Wiley Online Library
This paper presents a synthesis of the works performed by various teams from France, Italy
and Canada around the question of second‐order work criterion. Because of the non …
and Canada around the question of second‐order work criterion. Because of the non …
Sustainability of internal structures during shear band forming in 2D granular materials
The shear band issue in frictional granular materials has attracted many concerns and
perspectives at the micro-and meso-scale have been involved to analyze this problem. At …
perspectives at the micro-and meso-scale have been involved to analyze this problem. At …
Diffuse and localized failure modes: two competing mechanisms
The concept of failure is one of the most debated in soil mechanics, for two reasons
essentially. First, this is a crucial issue in the engineering of structures and geotechnical …
essentially. First, this is a crucial issue in the engineering of structures and geotechnical …
The H-microdirectional model: accounting for a mesoscopic scale
Solving boundary value problems requires implementation of sufficiently robust constitutive
models. Most models try to incorporate a great deal of phenomenological ingredients, but …
models. Most models try to incorporate a great deal of phenomenological ingredients, but …
Failure in rate-independent granular materials as a bifurcation toward a dynamic regime
This paper investigates the issue of failure in rate-independent granular material specimens
under a novel line of reasoning. The mechanism of failure is related to an increase in kinetic …
under a novel line of reasoning. The mechanism of failure is related to an increase in kinetic …
[HTML][HTML] Controllability, uniqueness and existence of the incremental response: A mathematical criterion for elastoplastic constitutive laws
In this paper the onset of instabilities in elastoplastic materials is theoretically studied and a
conceptual basis for understanding the physical implications of a loss of uniqueness and/or …
conceptual basis for understanding the physical implications of a loss of uniqueness and/or …
Force chain collapse as grain column buckling in granular materials
Granular materials react under external loading by self-organizing the topology of the grain
assembly. Thus, quasi-linear grain patterns, known as force chains, develop within the …
assembly. Thus, quasi-linear grain patterns, known as force chains, develop within the …