Micromechanical formulation of the yield surface in the plasticity of granular materials

Homayoun Shaverdi, Mohd. Raihan Taha, Farzin Kalantary

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An equation is proposed to unify the yield surface of granular materials by incorporating the fabric and its evolution. In microlevel analysis by employing a Fourier series that was developed to model fabric, it is directly included in the strength of granular materials. Inherent anisotropy is defined as a noncoaxiality between deposition angle and principal compressive stress. Stress-induced anisotropy is defined by the degree of anisotropy α and the major direction of the contact normals. The difference between samples which have the same density (or void ratio) but different bedding angles is attributed to this equation. The validity of the formulation is verified by comparison with experimental data.

Original languageEnglish
Article number385278
JournalJournal of Applied Mathematics
Volume2013
DOIs
Publication statusPublished - 2013

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Granular Materials
Granular materials
Plasticity
Anisotropy
Formulation
Angle
Fourier series
Voids
Compressive stress
Experimental Data
Contact
Model

ASJC Scopus subject areas

  • Applied Mathematics

Cite this

Micromechanical formulation of the yield surface in the plasticity of granular materials. / Shaverdi, Homayoun; Taha, Mohd. Raihan; Kalantary, Farzin.

In: Journal of Applied Mathematics, Vol. 2013, 385278, 2013.

Research output: Contribution to journalArticle

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