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Effect Of Particle Shape And Particle Damage On Stress Wave Propagation In Granular Media
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Book Synopsis Effect of Particle Shape and Particle Damage on Stress Wave Propagation in Granular Media by : Raman P. Singh
Download or read book Effect of Particle Shape and Particle Damage on Stress Wave Propagation in Granular Media written by Raman P. Singh and published by . This book was released on 1992 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Particle Shape on the Mechanical Behavior of Granular Materials. A Discrete Element Study by :
Download or read book Effect of Particle Shape on the Mechanical Behavior of Granular Materials. A Discrete Element Study written by and published by . This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Effect of Particle Shape on Granular Stress by : Benjamin James
Download or read book The Effect of Particle Shape on Granular Stress written by Benjamin James and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Aleksandr F. Revuzhenko Publisher :Springer Science & Business Media ISBN 13 :9783540338710 Total Pages :324 pages Book Rating :4.3/5 (387 download)
Book Synopsis Mechanics of Granular Media by : Aleksandr F. Revuzhenko
Download or read book Mechanics of Granular Media written by Aleksandr F. Revuzhenko and published by Springer Science & Business Media. This book was released on 2007-01-19 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph covers phenomena of deformation and machining of granular media: macroscopic particles of different size, shape, and surface properties which typically exhibit behavior similar to fluids, as well as the behavior of solids under deformation. The book analyses the behavior of granular media in soils, rocks and stones, metals and various synthetic materials, presenting a theoretical description, applications and understanding of basic phenomena in granular matter.
Book Synopsis The Effect of Particle Shape on the Properties of Granular Materials by : Janet Barbara Scotton
Download or read book The Effect of Particle Shape on the Properties of Granular Materials written by Janet Barbara Scotton and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Particle Shape and Size Distribution Upon Flow Through Granular Media by : R. J. Preston
Download or read book The Effect of Particle Shape and Size Distribution Upon Flow Through Granular Media written by R. J. Preston and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Shape Effects on Dynamic Load Transfer in Granular Media by : Yan Zhu
Download or read book Particle Shape Effects on Dynamic Load Transfer in Granular Media written by Yan Zhu and published by . This book was released on 1996 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Society of Mechanical Engineers. Winter Annual Meeting Publisher :American Society of Civil Engineers ISBN 13 : Total Pages :134 pages Book Rating :4.3/5 (91 download)
Book Synopsis Wave Propagation in Granular Media by : American Society of Mechanical Engineers. Winter Annual Meeting
Download or read book Wave Propagation in Granular Media written by American Society of Mechanical Engineers. Winter Annual Meeting and published by American Society of Civil Engineers. This book was released on 1989 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Particle Shape and Size-distribution Upon Flow Through Granular Media by : Roger James Preston
Download or read book The Effect of Particle Shape and Size-distribution Upon Flow Through Granular Media written by Roger James Preston and published by . This book was released on 1974 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: PARTICLE SIZE, PARTICLE SHAPE, FLOW VELOCITY, FLUID FLOW, POWDERS, POROSITY, PACKED BEDS, PIPES, PARTICLE DENSITY, PARTICLE MIGRATION.
Book Synopsis Particle Shape and Stiffness by : Jake Steven Dodds
Download or read book Particle Shape and Stiffness written by Jake Steven Dodds and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle shape is evaluated on three scales corresponding to form, roundness and roughness. Shape at each of these scales uniquely influences material behavior. The shape of sand grains is largely formed as magma cools. Subsequent cleavage and abrasion change the roundness and roughness of particles. Published results indicate that particle shape influences several aspects of granular systems behavior including stiffness, strength, the evolution of strength anisotropy, dilation, and the development of strain localization. crushing of granite creates a particulate material with a unique angular shape. A wide range of the experimental studies implemented as part of this research permit assembling a unique database of material parameters and comparing the behavior of several crushed and natural sands. In general, the low roundness of crushed sands leads to higher maximum void ratios, lower small strain stiffnesses, and higher critical state friction angles than more rounded natural sands. It also impacts mortar strength and workability. Previous studies have emphasized size-controlled segregation. New experimental results show that differences in particle shape can also lead to segregation in a binary granular material. Round or spherical particles are more mobile than angular or flat particles. Then, the greater motion of round or spherical particles in a binary mixture subjected to horizontal or vertical vibration results in their segregation from their angular or flat neighbors. Particle shape may change significantly with stress in the case of soft particles. Therefore, the presence of shape-deformable particles decreases the stiffness of binary rigid-soft particle mixtures. However, macro-scale measurements with rigid-soft mixtures show higher stiffness than would be expected by volume averaging techniques. A subsequent microscale study shows the formation of backbone chains made of the rigid particles, partially supported by the soft particles which prevent the buckling of the load-carrying chains.
Book Synopsis Mechanics of Granular Matter by : Qicheng Sun
Download or read book Mechanics of Granular Matter written by Qicheng Sun and published by WIT Press. This book was released on 2013 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Dynamic Image Analysis of Granular Materials by : Magued Iskander
Download or read book Dynamic Image Analysis of Granular Materials written by Magued Iskander and published by Springer Nature. This book was released on with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Role of Damage and Damage Growth on Dynamic Load Transfer in Particulate Media by :
Download or read book Role of Damage and Damage Growth on Dynamic Load Transfer in Particulate Media written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was conducted to investigate dynamic load transfer and wave propagation in particulate assemblies containing damaged particles. The assembly was simulated by a one-dimensional array of circular disks, and the damage itself, by a natural crack or drilled boles. The assembly was explosively loaded and the dynamic load transfer process observed using dynamic photoelasticity and strain gages. Attention was focused on the influence of damage size and orientation on the group wave velocity, wave dispersion, and peak contact load attenuation of the stress wave pulse Damage growth occurring from the interaction of the stress wave with the crack tip was also studied. The results demonstrate that the inclusion of a damaged particle greatly influences the load transfer process, both locally and in the far field. The degree to which the damaged particle modified the load transfer process is more dependent upon the orientation of the crack than upon the size of the crack. Moreover, damage growth within the damaged part ices is also a strong function of the orientation of the crack. Experiments with drilled disks showed that the stress wave propagation was influenced by the amount as well as the orientation of the pores.
Download or read book Granular Matter written by Anita Mehta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Powders have been studied extensively because they arise in a wide variety of fields, ranging from soil mechanics to manufacture of pharmaceuticals. Only recently, however, with the deepening understanding of fractals, chaos, 1/f noise, and self-organization, has it been useful to study the mechanical properties of powders from a fundamental physical perspective. This book collects articles by some of the foremost researchers in the field, including chapters on: the role of entropy in the specification of a powder, by S.F. Edwards (Cambridge); discrete mechanics, by P.K. Haff (Duke); computer simulations of granular materials, by G.C. Barker (Norwich); pattern formation and complexity in granular flow, by R.P. Behringer and G.W. Baxter (Duke); avalanches in real sand piles, by A. Mehta (Birmingham); micromechanical models of failure, by M.J. Adams (Unilever) and B.J. Briscoe (Imperial College); mixing and segregation in particle flows, by J. Bridgwater (Birmingham); and hard-sphere colloidal suspensions, by P. Bartlett (Bristol) and W. van Megen (Melbourne).
Book Synopsis Dynamic Behavior of Granular Media by : James V. Zaccor
Download or read book Dynamic Behavior of Granular Media written by James V. Zaccor and published by . This book was released on 1964 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussions of shock and reflection phenomena in soil are presented in the appendixes. Finally, attention is called to current limited data which appear to correlate measured attenuation of peak stress, resulting from interaction of loading and unloading waves for a square-wave input pulse, with hydrodynamic attenuation theory.
Book Synopsis Computational Mechanics of Arbitrarily Shaped Granular Materials by : Siqiang Wang
Download or read book Computational Mechanics of Arbitrarily Shaped Granular Materials written by Siqiang Wang and published by Springer Nature. This book was released on 2024-01-17 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on discrete element methods for arbitrarily shaped granular materials, including super-quadric models, spherical harmonic functions and level set methods, and numerical analysis of the flow characteristics of non-spherical granular materials. This book is used as a reference book for scientific researchers engaged in dynamic analysis of granular materials and optimal design of equipment structures in the fields of engineering mechanics, applied physics, mechanical engineering, and chemical engineering, as well as for graduate students or senior undergraduates of related majors in institutions of higher education.
Book Synopsis Study of Stress Wave Propagation in Damaged Particulate Media by : Harry Zervas
Download or read book Study of Stress Wave Propagation in Damaged Particulate Media written by Harry Zervas and published by . This book was released on 1995 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
