Interpretation of cone penetration test in clay with smoothed particle finite element method

2021 ◽  
Author(s):  
Wei Zhang ◽  
Jia-qiang Zou ◽  
Xian-wei Zhang ◽  
Wei-hai Yuan ◽  
Wei Wu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Cone Penetration Test ◽  
Penetration Test ◽  
Cone Penetration ◽  
Particle Finite Element Method ◽  
Smoothed Particle ◽  
Element Method

Dynamic modeling of large deformation slope failure using smoothed particle finite element method

Landslides ◽  
2020 ◽  
Vol 17 (7) ◽  
pp. 1591-1603 ◽  
Author(s):  
Wei-Hai Yuan ◽  
Kang Liu ◽  
Wei Zhang ◽  
Beibing Dai ◽  
Yuan Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Large Deformation ◽  
Dynamic Modeling ◽  
Slope Failure ◽  
Particle Finite Element Method ◽  
Smoothed Particle ◽  
Element Method

scholarly journals A mixed u–p edge-based smoothed particle finite element formulation for viscous flow simulations

2021 ◽  
Author(s):  
Janis Reinold ◽  
Günther Meschke
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Viscous Flow ◽  
Finite Element Formulation ◽  
Element Formulation ◽  
Spatial Integration ◽  
Particle Finite Element Method ◽  
Smoothed Particle ◽  
Edge Based ◽  
Element Method

AbstractA mixed u–p edge-based smoothed particle finite element formulation is proposed for computational simulations of viscous flow. In order to improve the accuracy of the standard particle finite element method, edge-based and face-based smoothing operations on the displacement gradient are proposed for 2D and 3D analyses, respectively. Consequently, spatial integration involving the smoothing operator is performed on smoothing domains. The constitutive model is based on an elasto-viscoplastic formulation allowing for simulations of viscous fluid or fluid-like solid materials. The viscous response is modeled using an overstress function. The performance of the proposed edge-based smoothed particle finite element method (ES-PFEM) is demonstrated by several numerical benchmark studies, showing an excellent agreement with analytical and reference solutions and an improved accuracy and computational efficiency in comparison with results from the standard PFEM model. Finally, a numerical application of the ES-PFEM to the computational simulation of the extrusion process during 3D-concrete-printing is discussed.

Development of an explicit smoothed particle finite element method for geotechnical applications

2019 ◽  
Vol 106 ◽  
pp. 42-51 ◽  
Author(s):  
Wei-Hai Yuan ◽  
Bin Wang ◽  
Wei Zhang ◽  
Quan Jiang ◽  
Xia-Ting Feng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Particle Finite Element Method ◽  
Smoothed Particle ◽  
Element Method

scholarly journals GPU-accelerated smoothed particle finite element method for large deformation analysis in geomechanics

2021 ◽  
Author(s):  
Wei Zhang ◽  
Zhi-hao Zhong ◽  
Chong ◽  
Wei-hai Yuan ◽  
Wei Wu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parallel Computing ◽  
Large Deformation ◽  
Computational Efficiency ◽  
Particle Finite Element Method ◽  
Memory Space ◽  
Strain Smoothing ◽  
Smoothed Particle ◽  
Element Method

Particle finite element method (PFEM) is an effective numerical tool for solving large-deformation problems in geomechanics. By incorporating the node integration technique with strain smoothing into the PFEM, we proposed the smoothed particle ?nite element method (SPFEM). This paper extends the SPFEM to three-dimensional cases and presents a SPFEM executed on graphics processing units (GPUs) to boost the computational efficiency. The detailed parallel computing strategy on GPU is introduced. New computation formulations related to the strain smoothing technique are proposed to save memory space in the GPU parallel computing. Several benchmark problems are solved to validate the proposed approach and to evaluate the GPU acceleration performance. Numerical examples show that with the new formulations not only the memory space can be saved but also the computational efficiency is improved. The computational cost is reduced by 70% for the double-precision GPU parallel computing with the new formulations.

Smoothed particle hydrodynamics versus finite element method for blast impact

2013 ◽  
Vol 61 (1) ◽  
pp. 111-121 ◽  
Author(s):  
T. Jankowiak ◽  
T. Łodygowski
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Smoothed Particle Hydrodynamics ◽  
Concrete Slab ◽  
The Finite Element Method ◽  
Particle Hydrodynamics ◽  
Mesh Density ◽  
Smoothed Particle ◽  
Element Method

Abstract The paper considers the failure study of concrete structures loaded by the pressure wave due to detonation of an explosive material. In the paper two numerical methods are used and their efficiency and accuracy are compared. There are the Smoothed Particle Hydrodynamics (SPH) and the Finite Element Method (FEM). The numerical examples take into account the dynamic behaviour of concrete slab or a structure composed of two concrete slabs subjected to the blast impact coming from one side. The influence of reinforcement in the slab (1, 2 or 3 layers) is also presented and compared with a pure concrete one. The influence of mesh density for FEM and the influence of important parameters in SPH like a smoothing length or a particle distance on the quality of the results are discussed in the paper

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