An Eulerean Finite Element Model for Penetration in Layered Soil

Berg, van den Peter; Borst, de R René; Huétink, Han

doi:10.1002/(sici)1096-9853(199612)20:12<865::aid-nag854>3.0.co;2-a

Cited by 58 publications

(22 citation statements)

References 17 publications

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“…Depending on the discretisation of materials, the ALE FE approaches focusing on geotechnical applications are divided into two categories: mesh-based methods such as in van den Berg et al [40], Hu and Randolph [13], Susila and Hryciw [33] and Sheng et al [30], which are the concern of this paper; and particle-based methods such as material point method [32,4]. In the mesh-based ALE approach with the operator-split technique, each incremental step includes a Lagrangian phase and an Eulerian phase.…”

Section: Introductionmentioning

confidence: 99%

Large deformation finite element analyses in geotechnical engineering

Wang

Bienen

Nazem

et al. 2015

Computers and Geotechnics

233

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a b s t r a c tGeotechnical applications often involve large displacements of structural elements, such as penetrometers or footings, in soil. Three numerical analysis approaches capable of accounting for large deformations are investigated here: the implicit remeshing and interpolation technique by small strain (RITSS), an efficient Arbitrary Lagrangian-Eulerian (EALE) implicit method and the Coupled Eulerian-Lagrangian (CEL) approach available as part of commercial software. The theoretical basis and implementation of the methods are discussed before their relative performance is evaluated through four benchmark cases covering static, dynamic and coupled problems in geotechnical engineering. Available established analytical and numerical results are also provided for comparison purpose. The advantages and limitation of the different approaches are highlighted. The RITSS and EALE predict comparable results in all cases, demonstrating the robustness of both in-house codes. Employing implicit integration scheme, RITSS and EALE have stable convergence although their computational efficiency may be low for high-speed problems. The CEL is commercially available, but user expertise on element size, critical step time and critical velocity for quasi-static analysis is required. Additionally, mesh-independency is not satisfactorily achieved in the CEL analysis for the dynamic case.

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Section: Introductionmentioning

confidence: 99%

Large deformation finite element analyses in geotechnical engineering

Wang

Bienen

Nazem

et al. 2015

Computers and Geotechnics

233

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“…Yue & Yin (1999) extended this work using rigorous analytical solutions for the static responses of ring type concentrated body forces and examined soil layering effects in both compressible and incompressible soils. Van den Berg et al (1996) presented an Eulerian analysis of the cone penetration test in multi-layered soils. The cone was modelled as a fixed boundary and the penetration process was simulated by applying incremental displacements to the material at the bottom of the mesh.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the cone penetration test in layered clay

Walker¹,

Yu²

2010

Géotechnique

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This paper presents an analysis of the cone penetration test in multi-layered clays using the commercial finiteelement code Abaqus/Explicit. The von Mises yield criterion and its associated flow rule are assumed to model the plastic behaviour of elastoplastic undrained clays. An arbitrary Lagrangian-Eulerian scheme and an enhanced hourglass algorithm are adopted to preserve the quality of mesh throughout the numerical simulation. Initially, the behaviour of the penetration resistance is examined in a soil with only two layers. The bottom layer is the weaker of the two and the behaviour of the penetration resistance when the cone approaches the lower layer is studied. The investigation is then extended to study the cone penetration test in a multi-layered clay by sandwiching a weaker clay layer between two stronger clay layers. The thickness of the weaker clay layer is varied and the behaviour of the penetration resistance is studied in relation to the thickness and relative strength of the soil layers. The results are discussed with respect to the soil mechanisms that are present when the cone moves past the relevant layer boundaries so that the position of these boundaries can be determined more accurately.KEYWORDS: clays; in situ testing; numerical modelling Cette communication présente une analyse de l'essai de pénétrabilité au cône dans des argiles multicouches, en utilisant la norme aux éléments finis commerciale Abaqus/Explicit. On a supposé que le critère de fluage de von Mises, et sa règle de fluage connexe, reflètent le comportement plastique des argiles élastoplastiques non drainées. On adopte un système Lagrangian-Eulerian arbitraire, ainsi qu'un algorithme à sablier renforcé, pour conserver la qualité de la maille tout au long de la simulation numérique. Au départ, le comportement de la résistance à la pénétration est examiné dans un sol à deux couches seulement. La couche inférieure est la plus faible des deux, et on étudie le comportement de la résistance à la pénétration lorsque le cône est proche de la couche inférieure. On poursuit ensuite l'examen pour étudier l'essai de pénétrabilité au cône dans une argile multicouche, en intercalant une couche d'argile plus faible entre deux couches d'argile plus résistante. On varie l'épaisseur de la couche d'argile plus faible, et on étudie le comportement de la résistance à la pénétration relativement à l'épaisseur et à la force relative des couches de sol. On discute des résultats relativement aux mécanismes du sol présents lorsque le cône se déplace au-delà des limites des couches concernées, de façon à déterminer avec plus de précision l'emplacement de ces limites.

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“…Conventional finite elements models have been extended to plasticity of soils [13][14][15][16][17], geometrical non-linearity [18][19][20], porous media [21][22][23][24] as well as flow models [25,26]. At the same time a large amount of geotechnical and civil engineering applications have been analysed by the FEM [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

“…To avoid a large mesh distortion that occurs in the large cone penetration analysis, van den Berg ( 1994,1996) [25,26] uses an arbitrary Lagrangian-Eulerian formulation to uncoupled nodal point displacements and velocities from material displacements and velocities. Uncoupling of material and nodal point displacements implies that convection has to be taken into account to be able to update the state at the nodal points.…”

Section: Introductionmentioning

confidence: 99%

Numeric Analysis of Large Penetration of the Cone in Undrained Soil Using Fem

Markauskas

Kačianauskas

Katzenbach

2003

Journal of Civil Engineering and Management

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Abstract. Numeric analysis of the large penetration of the cone in undrained soil using finite element method (FEM) is presented. Until now the computation procedures has not been developed to such an extent, that they could provide numerical solution of large cone penetration problem. In this paper for solving of the large cone penetration problem an updated Lagrangian formulation and finite element method are used. To overcome large distortion of the finite element geometry during cone penetration leading to illconditioning equations a remeshing technique is developed. The proposed remeshing technique enables the simulation of the penetration process until steady cone penetration is reached. The analysis of the cone penetration in undrained soil is provided. The comparison of current numerical results and other authors' results are presented.

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An Eulerean Finite Element Model for Penetration in Layered Soil

Cited by 58 publications

References 17 publications

Large deformation finite element analyses in geotechnical engineering

Large deformation finite element analyses in geotechnical engineering

Analysis of the cone penetration test in layered clay

Numeric Analysis of Large Penetration of the Cone in Undrained Soil Using Fem

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