Results 21 to 30 of about 2,934,009 (329)
A multi-point constraint unfitted finite element method
Advanced Modeling and Simulation in Engineering Sciences, 2022 In this work a multi-point constraint unfitted finite element method for the solution of the Poisson equation is presented. Key features of the approach are the strong enforcement of essential boundary, and interface conditions.
Brubeck Lee Freeman
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The aggregated unfitted finite element method for elliptic problems [PDF]
Computer Methods in Applied Mechanics and Engineering, 2017 Unfitted finite element techniques are valuable tools in different applications where the generation of body-fitted meshes is difficult. However, these techniques are prone to severe ill conditioning problems that obstruct the efficient use of iterative ...
S. Badia, F. Verdugo, Alberto F. Martín
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CivilEng, 2022 Train passages over intact or damaged slab tracks on different soils were calculated by two methods. The finite element method (FEM) uses a Winkler soil under the track model by adding a thin “soil layer”.
Lutz Auersch, Jiaojiao Song
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Crownwall Failure Analysis through Finite Element Method
Journal of Marine Science and Engineering, 2020 Several failures of recurved concrete crownwalls have been observed in recent years. This work aims to get a better insight within the processes underlying the loading phase of these structures due to non-breaking wave impulsive loading conditions and to
Dimitrios Dermentzoglou +5 more
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Poly-Spline Finite-Element Method [PDF]
ACM Transactions on Graphics, 2019 We introduce an integrated meshing and finite-element method pipeline enabling solution of partial differential equations in the volume enclosed by a boundary representation. We construct a hybrid hexahedral-dominant mesh, which contains a small number of star-shaped polyhedra, and build a set of high-order bases on its elements, combining triquadratic
Teseo Schneider +5 more
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Seepage analysis based on weak finite element method
Yantu gongcheng xuebao, 2023 In the design and operation management of hydraulic structures such as dams, gates and embankments, the seepage calculation plays a very important role. The current methods for seepage analysis are mainly based on the general finite element method. It is
HE Zhaokui 1, SU Baoyu 2, SHENG Jinchang 2, LUO Yulong 2
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A fully discrete evolving surface finite element method [PDF]
, 2012 In this paper we consider a time discrete evolving surface finite element method for the advection and diffusion of a conserved scalar quantity on a moving surface.
Charles M. Elliott +2 more
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The finite element method with penalty [PDF]
Mathematics of Computation, 1973 An application of the penalty method to the finite element method is analyzed. For a model Poisson equation with homogeneous Dirichlet boundary conditions, a variational principle with penalty is discussed. This principle leads to the solution of the Poisson equation by using functions that do not satisfy the boundary condition. The rate of convergence
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High-Accuracy Finite Element Method: Benchmark Calculations
EPJ Web of Conferences, 2018 We describe a new high-accuracy finite element scheme with simplex elements for solving the elliptic boundary-value problems and show its efficiency on benchmark solutions of the Helmholtz equation for the triangle membrane and hypercube.
Gusev Alexander +7 more
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Nihon Kikai Gakkai ronbunshu, 2016 This paper presents a novel Formulated Alpha FEM with deviatoric / volumetric split, which is combination of standard FEM and Node-based Smoothed FEM (NS-FEM), to compute highly accurate deformation in mechanical problems using tetrahedral elements.
Masaki FUJIKAWA +5 more
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