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Title of Journal: Granular Matter

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Abbravation: Granular Matter

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Springer Berlin Heidelberg

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DOI

10.1007/bf01261655

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ISSN

1434-7636

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Effects of triaxial confining pressure and strain

Authors: A Ozbay A F Cabalar
Publish Date: 2016/07/07
Volume: 18, Issue: 3, Pages: 60-
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Abstract

Some granular materials including spherical glass beads may suffer from stickslip instabilities which are characterized by successive fluctuations in the stress–strain behavior Under various loading conditions these stickslip failures cause a portion of the stored strain energy within the granular medium to be suddenly released It is accompanied by a partial collapse and volumetric contraction occurring at the same time In order to understand the factors behind the stickslip mechanism a series of laboratory experiments were carried out in this study Cylindrical specimens constituted by dry looselypacked spherical glass beads were tested in triaxial compression The effects of confining pressure and strain rate on stickslip behavior were investigated The experimental results show that as the confining pressure is increased both the deviatoric stress amplitude and the oscillation amplitude increase On the other hand any increase in the strain rate causes the deviatoric stress amplitude to decrease However the oscillation amplitude is not affected by the strain rate

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  1. Arching effect on lateral pressure of confined granular material: numerical and theoretical analysis
  2. FE-studies on Shear Localization in an Anistropic Micro-polar Hypoplastic Granular Material
  3. Discrete Element Method Analysis of Railtrack Ballast Degradation during Cyclic Loading
  4. Modeling the transition between stable and unstable operation while emptying a silo
  5. Numerical simulation of particle flow in a sand trap
  6. The behaviour of water-immersed glass-bronze particulate systems under vertical vibration
  7. Modelling and analysis of heat transfer through 1D complex granular system
  8. Living quicksand
  9. Mesoscale simulation of clay aggregate formation and mechanical properties
  10. DEM simulation of particle attrition in dilute-phase pneumatic conveying
  11. Particle characterization using THz spectroscopy
  12. Absence of ‘fragility’ and mechanical response of jammed granular materials
  13. A new method for the analysis of compaction processes in high-porosity agglomerates
  14. A new method for the analysis of compaction processes in high-porosity agglomerates
  15. An algorithm to generate random dense arrangements for discrete element simulations of granular assemblies
  16. DEM simulation of the packing structure and wall load in a 2-dimensional silo
  17. The critical-state yield stress (termination locus) of adhesive powders from a single numerical experiment
  18. Application of the theory of Markov chains to model heat and mass transfer between stochastically moving particulate and gas flows
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