Influence of Particle Shape on the Mechanical Behavior of Granular Materials PDF Download
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Author: Larry R. Meachum
Publisher:
ISBN:
Category : Granular materials
Languages : en
Pages : 548
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Book Description
Author: Larry R. Meachum
Publisher:
ISBN:
Category : Granular materials
Languages : en
Pages : 548
Get Book Here
Book Description
Author: 羅曉東
Publisher:
ISBN:
Category : Granular materials
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
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Book Description
An existing two dimensional Discrete Element numerical model which incorporates elliptical particles is used to simulate the biaxial shear of particulate systems. Comparisons are made with physical tests on circular and oval shaped rod systems. Good quantitative agreement was found with the circular rod data, but significantly weaker and softer response was found compared with the oval rod data. This discrepancy is attributed to differences in particle shape in the physical and numerical tests. Additional simulations were conducted using bedded, strongly anisotropic systems at varying degrees of particle flatness. These exhibit distinctly different stress strain and strength behavior, as well as different controlling mechanisms, as function of particle flatness and bedding plane orientation. Shear bands were observed in some flatness and bedding combinations. Interparticle interlocking, dilatancy and inhibition of particle rolling were all observed. Samples with bedding normal to the principal stress direction exhibited the highest shear resistance, as well as largest dilatancy. In systems composed of flat particles with bedding parallel to one of the planes of maximum obliquity, shear bands sometimes formed in the maximum obliquity plane opposite to the bedding plane.
Author: Bernard Cambou
Publisher: Springer
ISBN: 370912526X
Category : Technology & Engineering
Languages : en
Pages : 403
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Book Description
This book presents a complete and comprehensive analysis of the behaviour of granular materials including the description of experimental results, the different ways to define the global behaviour from local phenomena at the particle scale, the various modellings which can be used for a D.E.M. analysis to solve practical problems and finally the analysis of strain localisation. The concepts developed in this book are applicable to many kinds of granular materials considered in civil, mechanical or chemical engineering.
Author: Behzad Soltanbeigi
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Catherine O'Sullivan
Publisher: CRC Press
ISBN: 1482266490
Category : Technology & Engineering
Languages : en
Pages : 574
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Book Description
The first single work on DEM providing the information to get started with this powerful numerical modelling approach. Provides the basic details of the numerical method and the approaches used to interpret the results of DEM simulations. It will be of use to professionals, researchers and higher level students, with a theoretical overview of DEM as well as practical guidance.Selected Contents: 1.Introduction 2.Use of DEM in Geomechanics 3.Calculation of Contact Forces 4.Particle Motion 5.Particle Types 6.Boundary Conditions 7.Initial Geometry and Specimen Generation 8.Time Integration and Discrete Element Modelling 9.DEM Interpretation: A Continuum Perspective 10.Postprocessing: Graphical Interpretation of DEM Simulations 11.Basic Statisti
Author: Janet Barbara Scotton
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Shivaprashanth Kumar Kodicherla
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Qicheng Sun
Publisher: WIT Press
ISBN: 1845646444
Category : Technology & Engineering
Languages : en
Pages : 209
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Book Description
Focussing on the basic mechanics and underlying physics of granular material, Mechanics of Granular Matter starts with an introduction to contact mechanics of individual particles before moving on to a discussion of the structure of force chain networks and the influence on bulk mechanical properties of granular solids and granular flows. Furthermore, a preliminary multi scale framework is proposed for the nonlinear mechanics and strain localization in granular materials.
Author: Andrés Alfonso Peña Olarte
Publisher:
ISBN: 9783921837597
Category :
Languages : en
Pages : 131
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Book Description
