NDLI: Modeling soft granular materials

Content Provider	Springer Nature Link
Author	Nezamabadi, Saeid Nguyen, Thanh Hai Delenne, Jean Yves Radjai, Farhang
Copyright Year	2016
Abstract	Soft-grain materials such as clays and other colloidal pastes share the common feature of being composed of grains that can undergo large deformations without rupture. For the simulation of such materials, we present two alternative methods: (1) an implicit formulation of the material point method (MPM), in which each grain is discretized as a collection of material points, and (2) the bonded particle model (BPM), in which each soft grain is modeled as an aggregate of rigid particles using the contact dynamics method. In the MPM, a linear elastic behavior is used for the grains. In order to allow the aggregates in the BPM to deform without breaking, we use long-range center-to-center attraction forces between the primary particles belonging to each grain together with steric repulsion at their contact points. We show that these interactions lead to a plastic behavior of the grains. Using both methods, we analyze the uniaxial compaction of 2D soft granular packings. This process is nonlinear and involves both grain rearrangements and large deformations. High packing fractions beyond the jamming state are reached as a result of grain shape change for both methods. We discuss the stress-strain and volume change behavior as well as the evolution of the connectivity of the grains. Similar textures are observed at large deformations although the BPM requires higher stress than the MPM to reach the same level of packing fraction.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	14345021
Journal	Granular Matter
Volume Number	19
Issue Number	1
e-ISSN	14347636
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-11-28
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Granular materials Soft matter Material point method Contact dynamics Discrete element method Elasto-plastic behavior Soft and Granular Matter, Complex Fluids and Microfluidics Engineering Fluid Dynamics Materials Science Geoengineering, Foundations, Hydraulics Industrial Chemistry/Chemical Engineering Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanics of Materials Materials Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Micromechanical analysis of cohesive granular materials using the discrete element method with an adhesive elasto-plastic contact model

Granular contact dynamics with particle elasticity

Wave propagation in elasto-plastic granular systems

Granular element method (GEM): linking inter-particle forces with macroscopic loading

Contact forces of polyhedral particles in discrete element method

Temporal variation of contact networks in granular materials

A linear model of elasto-plastic and adhesive contact deformation

Grain crushing and high-pressure oedometer tests simulated with the discrete element method

Anisotropy of elasticity and fabric of granular soils

Modeling soft granular materials

Similar Documents

Micromechanical analysis of cohesive granular materials using the discrete element method with an adhesive elasto-plastic contact model

Granular contact dynamics with particle elasticity

Wave propagation in elasto-plastic granular systems

Granular element method (GEM): linking inter-particle forces with macroscopic loading

Contact forces of polyhedral particles in discrete element method

Temporal variation of contact networks in granular materials

A linear model of elasto-plastic and adhesive contact deformation

Grain crushing and high-pressure oedometer tests simulated with the discrete element method

Anisotropy of elasticity and fabric of granular soils

Modeling soft granular materials