Numerical Simulation of Constitution Relationship between Stress andStrain of Particulate Matters [Translated]†

KONA Powder and Particle Journal

Shinichi Yuu¹  Toshihiko Umekage¹ 

[1] Department of Mechanical Engineering, Kyushu Institute ofTechnology;

关键词: constitution relationship;    stress strain relation;    numerical simulation;    distinct element method;    particulate matter;   

DOI  :  10.14356/kona.2007025

来源: DOAJ

【 摘 要 】

The relations between normal stress and normal strain and that between shearstress and shear strain, which are the constitution relationships, have beenobtained in a simple and general particulate field by the numerical simulationusing Distinct Element Method. We calculate the dynamics of particulate mattersusing the continuum model based on these relations. Furthermore, the numericallycalculated constitutive relations are formulated in order to use them for thecontinuum model simulation. The constitution relationships presented in thiswork confirm the following.1.Stresses are functions of strains and packing ratios.2.The constitution relationship of particulate matters has a hysteresis becauseof the change in the internal state of the particulate matters.3.Particulate matters are deformed more easily by the shear stress than thenormal stress.† This paper, published originally in Japanese in J. Soc. Powder Technology,Japan, 42, 116-124 (2005), is published in KONA with the permission of theeditorial committee of the Soc. Powder Technology, Japan.

【 授权许可】

Unknown