Two-dimensional Soil-structure Interface Shearing Characteristics by Discrete Element Method

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	Two-dimensional Soil-structure Interface Shearing Characteristics by Discrete Element Method
	Zhou, W. H.; Chen, W. B.
	2018-12-01
Source Publication	The 25th Australasian Conference on Mechanics of Structures and Materials (ACMSM25)
Abstract	This study aims to investigate the two-dimensional shear stress of an interface shearing caused by different texture orientations. The texture orientation (relative to shear direction) was defined to be an angle between the shear direction and the texture line of the directional rough surface. Using the discrete element method, 3D numerical interface shear tests, under the five texture orientations (0°, 30°, 45°, 60°, and 90°) were conducted. The analysis of shear-induced contact force changes on the lateral boundaries of shear box indicates the 2D shear stress exists in the interface. The stress ratios in the x-direction and y-direction were defined as the ratio of shear stress in both directions to the normal stress of the interface, respectively. A higher angle of shearing direction gives rise to stress ratio and finally produces a higher peak value. Stress ratio remains negligible for 0° (the shear direction is along the texture line) and 90°(the shear direction is vertical to the texture line) during shearing. For the other cases, stress ratio increases at the beginning of shearing and remains stable at large shear displacement. The analysis of displacement movement patterns was further presented to explain why the normal contact force change on the lateral boundaries.
Keyword	Two-dimensional shear stress Interface Texture orientation Discrete element method
Language	英語English
The Source to Article	PB_Publication
PUB ID	42587
Document Type	Conference paper
Collection	DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding Author	Zhou, W. H.
Recommended Citation GB/T 7714	Zhou, W. H.,Chen, W. B.. Two-dimensional Soil-structure Interface Shearing Characteristics by Discrete Element Method[C], 2018.
APA	Zhou, W. H.., & Chen, W. B. (2018). Two-dimensional Soil-structure Interface Shearing Characteristics by Discrete Element Method. The 25th Australasian Conference on Mechanics of Structures and Materials (ACMSM25).

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