Numerical simulation of experimentally shear-tested contact specimens from existing dam joints

Renaud, Sylvain; Bouaanani, Najib; Miquel, Benjamin

doi:10.1016/j.compgeo.2020.103630

Cited by 13 publications

(3 citation statements)

References 30 publications

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“…The element sizes selected are in the same range as the acceptable element size of 2 mm reported by Renaud et al [44] for the numerical simulation of the direct shear test of unbonded rough concrete-rock interface with a cylindrical sample having a diameter between 83 mm and 145 mm.…”

Section: Generation Of the Meshmentioning

confidence: 99%

“…Gutiérrez et al [43] used the discrete element method to simulate the direct shear test of unbonded concrete-rock interfaces. Renaud et al [44] used finite element modeling to conduct 3D simulations of direct shear tests of unbonded and naturally rough concrete-rock interfaces with an explicit representation of the topography of the interface. Dong et al [45] presented a 3D numerical modeling that captures the behavior of rock bolts and shotcrete-rock interfaces.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Concrete–Rock Bonds and Roughness on the Shear Behavior of Concrete–Rock Interfaces under Low Normal Loading, Experimental and Numerical Analysis

et al. 2022

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Direct shear tests were performed to study the influence of concrete–rock bonds and roughness on the shear behavior of concrete–rock interfaces. The results of these tests show that the shear behavior of concrete–hardrock interfaces depends on the micro-roughness driving the formation of strong concrete–rock bonds and on the macro-roughness accounting for the influence of the surfaces interlocking. Based on this outcome and recent literature, a cohesive frictional model is used to simulate direct shear tests of bonded concrete–granite interfaces with the explicit representation of naturally rough interfaces. The results of these simulations show that the model has good prediction capability compared to the experimental results, opening up the pathway to numerically based robust statistical analysis.

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Section: Generation Of the Meshmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Concrete–Rock Bonds and Roughness on the Shear Behavior of Concrete–Rock Interfaces under Low Normal Loading, Experimental and Numerical Analysis

et al. 2022

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“…Analyzing its constituents' relative orientation, described by fabric tensors, allows for a systematical structure characterization [SJCT20]. Such knowledge can then be exploited in numerical simulations, e.g., to assess the stability of dams [RBM20] or waste reservoirs [MGV*17, RBR*20].…”

Section: Geomechanicsmentioning

confidence: 99%

Visualization of Tensor Fields in Mechanics

Hergl

Blecha

Kretzschmar

et al. 2021

Computer Graphics Forum

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Tensors are used to describe complex physical processes in many applications. Examples include the distribution of stresses in technical materials, acting forces during seismic events, or remodeling of biological tissues. While tensors encode such complex information mathematically precisely, the semantic interpretation of a tensor is challenging. Visualization can be beneficial here and is frequently used by domain experts. Typical strategies include the use of glyphs, color plots, lines, and isosurfaces. However, data complexity is nowadays accompanied by the sheer amount of data produced by large-scale simulations and adds another level of obstruction between user and data. Given the limitations of traditional methods, and the extra cognitive effort of simple methods, more advanced tensor field visualization approaches have been the focus of this work. This survey aims to provide an overview of recent research results with a strong application-oriented focus, targeting applications based on continuum mechanics, namely the fields of structural, bio-, and geomechanics. As such, the survey is complementing and extending previously published surveys. Its utility is twofold: (i) It serves as basis for the visualization community to get an overview of recent visualization techniques. (ii) It emphasizes and explains the necessity for further research for visualizations in this context.

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A Novel Method for Determining the Three-dimensional Roughness of Rock Joints Based on Profile Slices

et al. 2023

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Numerical simulation of experimentally shear-tested contact specimens from existing dam joints

Cited by 13 publications

References 30 publications

Influence of Concrete–Rock Bonds and Roughness on the Shear Behavior of Concrete–Rock Interfaces under Low Normal Loading, Experimental and Numerical Analysis

Influence of Concrete–Rock Bonds and Roughness on the Shear Behavior of Concrete–Rock Interfaces under Low Normal Loading, Experimental and Numerical Analysis

Visualization of Tensor Fields in Mechanics

A Novel Method for Determining the Three-dimensional Roughness of Rock Joints Based on Profile Slices

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