Simulation of the Dependence of the Bulk-Stress-Strain Relations of Granular Materials on the Particle Shape(Condensed matter: structure and mechanical and thermal properties)

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概要

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• We investigate the effect of particle shape and interparticle friction on the stress-strain-relation using the discrete element method (DEM) in two dimensions. Elongated particles show a significantly higher shear strength than non-elongated particles. The relative maximum which is characteristic for experimental stress-strain curves of granular materials is found only for elongated particles with finite Coulomb friction, which indicates that the particle elongation is an important parameter in the statistical physics of granular materials. An earlier simulation result from another group which showed a maximum for non-elongated particles could be identified to be due to the formation of a shear band.

• 社団法人日本物理学会の論文
• 2006-10-15

著者

• MORITA Shinichi

  Department of Molecular Genetics, Graduate School of Medical and Dental Sciences, Niigata University

• Matuttis Hans-georg

  Department Of Mechanical Engineering And Intelligent Systems University Of Electro-communications

• SHOURBAGY Salah

  Department of Mechanical Engineering and Intelligent Systems, University of Electro-Communications

• El Shourbagy

  Department Of Mechanical Engineering And Intelligent Systems University Of Electro-communications

• Shourbagy Salah

  Department Of Mechanical Engineering And Intelligent Systems University Of Electro-communications

• Morita Shinichi

  Department Of Mechanical Engineering And Intelligent Systems University Of Electro-communications

• Matuttis Hans-georg

  Department Of Applied Physics School Of Engineering The University Of Tokyo

• Matuttis Hans‐georg

  Univ. Electro‐communications Tokyo

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