Preliminary Study on Microscopic Mechanism of Stress-Induced Anisotropy for Coarse-Grained Soil

Kun Yong Zhang; Xing Jun Luo

doi:10.4028/www.scientific.net/AMR.838-841.987

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 838-841Preliminary Study on Microscopic Mechanism of...

Preliminary Study on Microscopic Mechanism of Stress-Induced Anisotropy for Coarse-Grained Soil

Abstract:

To study the microscopic mechanism of stress-induced anisotropy for coarse-grained soil, with PFC(particle flow code) numerical simulation method, many planar biaxial test samples composed of regular disk particles or irregular clump particles were prepared, different initial stress states were given, and equal stress increment was applied on different directions. Then, initial elastic modulus and stress-induced anisotropy property were got, and analysis of its microscopic mechanism of stress-induced anisotropy was given. Results shows, the stress-induced anisotropy of coarse-grained soil occurs under the interaction of internal irregular microscopic structure and external non-isotropic stress.

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Periodical:

Advanced Materials Research (Volumes 838-841)

Pages:

987-990

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.838-841.987

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Online since:

November 2013

Authors:

Kun Yong Zhang, Xing Jun Luo

Keywords:

Anisotropy, Long Axis Orientation, Microscopic, PFC

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