Journal ArticleDOI
Comparing pull-out capacity of expandable anchors using discrete/coupled Eulerian element methods versus finite element technique
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In this article , the bearing capacity of expandable anchors with different shapes and plate numbers was evaluated using the coupled Eulerian-Lagrangian, discrete element, and finite element methods.Abstract:
Advancements in industry and increased energy demands have led to the construction of onshore and offshore platforms. The stability of these platforms is a major challenge for geotechnical engineers. Expandable anchors have recently been proposed to address this issue. Researchers have investigated the bearing capacity of anchors with different shapes and plate numbers using experimental and numerical methods. The use of a suitable method for numerical modeling of expandable anchors is necessary to determine their performance. The current study evaluated the bearing capacity of multi-plate anchors using the coupled Eulerian-Lagrangian, discrete element, and finite element methods and compares their results. The effect of an increase in the number of plates (to three), the distance between plates, the plate shape (square or circular), and the soil density (80% or 60%) on the bearing capacity of the anchors was determined. The results showed that the Eulerian model was in very good agreement with the experimental results and that the square anchor exhibited a higher bearing capacity than the circular anchor. An equation is proposed for the calculation of the bearing capacity of expandable anchors. read more
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Journal ArticleDOI
The Ultimate Uplift Capacity of Foundations
G G Meyerhof,J I Adams +1 more
TL;DR: In this article, the ultimate uplift capacity of foundations with special reference to transmission tower footings is evaluated and a number of model uplift tests made by the authors and by others are studied and evaluated.
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Discrete element models for non-spherical particle systems: From theoretical developments to applications
TL;DR: In this paper, a review of recent developments in the discrete element method (DEM) to model particles of non-spherical shape is presented, including shape representation, algorithms for the efficient detection of contacts and the determination of contact parameters.
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Application of a Coupled Eulerian–Lagrangian approach on geomechanical problems involving large deformations
TL;DR: In this paper, a Coupled Eulerian-Lagrangian (CEL) approach has been developed to overcome the difficulties with regard to finite element method and large deformation analyses.
Journal ArticleDOI
The ultimate pullout capacity of anchors in frictional soils
R. S. Merifield,Scott W. Sloan +1 more
TL;DR: In this article, the authors present the results of a rigorous numerical study to estimate the ultimate pullout load for vertical and horizontal plate anchors in frictional soils, which is based on finite element formulations of the upper and lower bound theorems of limit analysis.
Journal ArticleDOI
Three-dimensional large deformation finite-element analysis of plate anchors in uniform clay
Dong Wang,Yuxia Hu,Mark Randolph +2 more
TL;DR: In this article, a modified recovery of equilibrium in patches technique was developed to map stresses after each remeshing, and the results showed that the anchor roughness had minimal effect on anchor performance.