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Evaluation of Boundary Effects in Simple Shear Tests Using Discrete Element Modelling
Discrete Element Method Modeling is used in this study to simulate simple shear tests and evaluate the efficiency and effectiveness of two different specimen cap types. Slippage can occur along the top and bottom boundaries in simple shear testing, causing inefficient transmission of shear forces through the sample and non-uniform stresses and strains to develop. Therefore, appropriate boundaries are required to ensure the efficient application of forces. To study the effects of boundaries, a series of monotonic laminar ring, direct simple shear tests with two types of top and bottom caps are modeled. The evolution of shear forces on each type of boundary is analyzed and the particle rotations are visualized to assess the influence throughout the specimen. Different boundaries display evidently distinct performance in computational efficiency, force transmission, and particle rotations.
Evaluation of Boundary Effects in Simple Shear Tests Using Discrete Element Modelling
Discrete Element Method Modeling is used in this study to simulate simple shear tests and evaluate the efficiency and effectiveness of two different specimen cap types. Slippage can occur along the top and bottom boundaries in simple shear testing, causing inefficient transmission of shear forces through the sample and non-uniform stresses and strains to develop. Therefore, appropriate boundaries are required to ensure the efficient application of forces. To study the effects of boundaries, a series of monotonic laminar ring, direct simple shear tests with two types of top and bottom caps are modeled. The evolution of shear forces on each type of boundary is analyzed and the particle rotations are visualized to assess the influence throughout the specimen. Different boundaries display evidently distinct performance in computational efficiency, force transmission, and particle rotations.
Evaluation of Boundary Effects in Simple Shear Tests Using Discrete Element Modelling
Guo, Jikai (author) / Bernhardt-Barry, Michelle L. (author) / Biscontin, Giovanna (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 599-607
2022-03-17
Conference paper
Electronic Resource
English
Evaluation of Boundary Effects in Simple Shear Tests Using Discrete Element Modelling
| British Library Conference Proceedings | 2022
Three-dimensional discrete element simulations of direct shear tests
| British Library Conference Proceedings | 2005