NDLI: DEM modeling of shear bands in crushable and irregularly shaped granular materials

Content Provider	Springer Nature Link
Author	Zhou, Wei Yang, Lifu Ma, Gang Xu, Kun Lai, Zhiqiang Chang, Xiaolin
Copyright Year	2017
Abstract	A method of modeling convex or concave polygonal particles is proposed. DEM simulations of shear banding in crushable and irregularly shaped granular materials are presented in this work. Numerical biaxial tests are conducted on an identical particle assembly with varied particle crushability. The particle crushing is synchronized with the development of macroscopic stress, and the evolution of particle size distribution can be characterized by fractal dimension. The shear banding pattern is sensitive to particle crushability, where one shear band is clearly visible in the uncrushable assembly and X-shaped shear bands are evident in the crushable assembly. There are fewer branches of strong force chains and weak confinement inside the shear bands, which cause the particles inside the shear bands to become vulnerable to breakage. The small fragments with larger rotation magnitudes inside the shear bands form ball-bearing to promote the formation of shear bands. While there are extensive particle breakages occurring, the ball-bearing mechanism will lubricate whole assembly. With the increase of particle crushability the shear band formation is suppressed and the shear resistance of the assembly is reduced. The porosity inside the shear bands are related to the particle crushability.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	14345021
Journal	Granular Matter
Volume Number	19
Issue Number	2
e-ISSN	14347636
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-03-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Granular materials Shear bands Discrete element modeling Particle shape Particle crushing 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

Simple shear simulation of 3D irregularly-shaped particles by image-based DEM

DEM of triaxial tests on crushable cemented sand

DEM of triaxial tests on crushable sand

DEM simulation on the one-dimensional compression behavior of various shaped crushable granular materials

Quantitative evaluation of the effect of irregularly shaped particles in sheared granular assemblies

DEM simulations of stiff and soft materials with crushable particles: an application of expanded perlite as a soft granular material

Discrete element modelling of one-dimensional compression of cemented sand

Particle shape effects in discrete element modelling of cohesive angular particles

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

DEM modeling of shear bands in crushable and irregularly shaped granular materials

Similar Documents

Simple shear simulation of 3D irregularly-shaped particles by image-based DEM

DEM of triaxial tests on crushable cemented sand

DEM of triaxial tests on crushable sand

DEM simulation on the one-dimensional compression behavior of various shaped crushable granular materials

Quantitative evaluation of the effect of irregularly shaped particles in sheared granular assemblies

DEM simulations of stiff and soft materials with crushable particles: an application of expanded perlite as a soft granular material

Discrete element modelling of one-dimensional compression of cemented sand

Particle shape effects in discrete element modelling of cohesive angular particles

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

DEM modeling of shear bands in crushable and irregularly shaped granular materials