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601
A Numerical Solution to Fractional Diffusion Equation for Force-Free Case
Published 2013-01-01“…A collocation finite element method for solving fractional diffusion equation for force-free case is considered. …”
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602
Dynamics of a Slab in the Roof of a Buried Structure When the Stiffness of its Supports is Varied
Published 2024-12-01“…When building the fibre concrete model, volumetric finite elements were used, coupling with reinforcement was taken into account by using interpolation elements, steel reinforcement was represented as an ideal elastoplastic body. …”
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603
Vibration Analysis of Multilink Manipulators Based on Timoshenko Beam Theory
Published 2011-01-01“…Once the analytical model is introduced, solutions are compared to both those achieved by previous models and those obtained by a finite elements method.…”
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604
Vibration of a Laminated Beam with a Delamination Including Contact Effects
Published 2004-01-01“…In order to investigate this task the finite element method has been applied in the current study. …”
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605
Modeling of Brain Shift Phenomenon for Different Craniotomies and Solid Models
Published 2012-01-01“…The models were solved with the finite elements package ANSYS. The predictions on stress and displacements were compared for three different craniotomies. …”
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606
Numerical approximations of thin structure deformations
Published 2023-08-01“…Equilibrium deformations are approximated using local discontinuous Galerkin finite elements. The discrete energies relies on a discrete Hessian operator defined on discontinuous functions with better approximation properties than the piecewise Hessian. …”
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607
Computational Treatments of Cavitation Effects in Near-Free-Surface Underwater Shock Analysis
Published 2001-01-01“…In order to avoid the use of a large array of cavitating acoustic finite elements (CAFE), various wet-surface approximations have been proposed. …”
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608
Complexities in Assessing Structural Health of Civil Infrastructures
Published 2017-01-01“…To meet the current needs of locating defect spots and their severity accurately and efficiently, infrastructures are represented by finite elements. To increase the implementation potential, the stiffness parameters of all the elements are identified and tracked using only few noise-contaminated dynamic responses measured at small part of the infrastructure. …”
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609
Stability of a weighted L2 projection in a weighted Sobolev norm
Published 2023-05-01“…We prove the stability of a weighted $L^2$ projection operator onto piecewise linear finite elements spaces in a weighted Sobolev norm. Namely, we consider the orthogonal projections $\pi _{N,\omega }$ from $L^2(\mathbb{D},1/\omega (x)\mathrm{d}x)$ to $\mathcal{X}_N$, where $\mathbb{D} \subset \mathbb{R}^2$ is the unit disk, $\omega (x) = \sqrt{1 - \vert x\vert ^2}$ and the spaces $(\mathcal{X}_N)_{N \in \mathbb{N}}$ consist of piecewise linear functions on a family of shape-regular and quasi-uniform triangulations of $\mathbb{D}$. …”
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610
Simulation of the Thermal Conditions of Cask with Fuel Assemblies of BN-350 Reactor for Dry Storage
Published 2019-01-01“…Simulation of the thermal condition of the cask is conducted with finite elements method using ANSYS software. Calculations of fuel temperature, fuel cladding, and assembly structural elements are the part of the safety analysis for storage of spent FA. …”
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611
Implementation of Virtual Crack Closure Technique for Damaged Composite Plates Using Higher-Order Layerwise Model
Published 2015-01-01“…For patched aluminum plate with behavior of complexity, the accuracy and simplicity of the present model are shown with comparison of the results with previously published papers using the conventional three-dimensional finite elements based on h-refinement.…”
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612
Design and Control of Nonlinear Mechanical Systems for Minimum Time
Published 2008-01-01“…The dynamic response and its sensitivity are discretized via space-time finite elements, and may be integrated either by at-once integration or step-by-step. …”
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613
Health Assessment of Large Two Dimensional Structures Using Limited Information: Recent Advances
Published 2012-01-01“…The procedure is a finite elements-based time-domain system-identification technique. …”
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614
Unstructured Grids and the Multigroup Neutron Diffusion Equation
Published 2013-01-01“…A simple two-dimensional homogeneous circular reactor is solved using a coarse unstructured grid in order to illustrate some basic differences between the finite volumes and the finite elements method. Also, the classic 2D IAEA PWR benchmark problem is solved for eighty combinations of symmetries, meshing algorithms, basic geometric entities, discretization schemes, and characteristic grid lengths, giving even more insight into the peculiarities that arise when solving the neutron diffusion equation using unstructured grids.…”
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615
Modeling and Simulation of the Hydrogenation of α-Methylstyrene on Catalytically Active Metal Foams as Tubular Reactor Packing
Published 2016-01-01“…The method of orthogonal collocation on finite elements was applied. For isothermal and polytropic processes and steady state conditions, axial profiles for concentration, temperature, fluid velocities, pressure, and liquid holdup were computed and the conversions for various gas and liquid flow rates were validated with experimental results. …”
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616
On the analysis of modes in a closed electromagnetic waveguide
Published 2024-05-01“…They can also be used to construct generalized Dirichlet-to-Neumann maps that provide artificial boundary conditions for truncating a computational domain when discretizing the field by finite elements. The modes of a waveguide arise as eigenfunctions of a non-symmetric eigenvalue problem, and the eigenvalues determine the propagation (or decay) of the modes along the waveguide. …”
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617
Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity
Published 2016-01-01“…A multibody mass-spring-damper model is employed to represent a moving railway car and the bridge system is simulated by finite elements. By introducing the pseudo excitation algorithm into the train-bridge interaction dynamic system, expressions of the mean value, standard deviation, and power spectral density of the nonstationary random dynamic responses of bridge and vehicles are derived. …”
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618
Degradation of Interfacial Bond for FRPs Near-Surface Mounted to Concrete Under Fatigue: An Analytical Approach
Published 2025-01-01“…The bond region was discretized into finite elements to include the effect of bond degradation to different extents, and a closed-form solution was derived by virtue of appropriate boundary conditions in each fatigue cycle. …”
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619
Affine Discontinuous Galerkin Method Approximation of Second-Order Linear Elliptic Equations in Divergence Form with Right-Hand Side in L1
Published 2018-01-01“…We consider the standard affine discontinuous Galerkin method approximation of the second-order linear elliptic equation in divergence form with coefficients in L∞Ω and the right-hand side belongs to L1Ω; we extend the results where the case of linear finite elements approximation is considered. We prove that the unique solution of the discrete problem converges in W01,qΩ for every q with 1≤q<d/d-1 (d=2 or d=3) to the unique renormalized solution of the problem. …”
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620
Comparison of Two Mechanics-Based Methods for Simplified Structural Analysis in Vulnerability Assessment
Published 2008-01-01“…This paper looks at two mechanics-based vulnerability assessment methods (DBELA and SP-BELA) and compares the nonlinear static response predicted with these methods with finite elements-based nonlinear analyses of prototype buildings. …”
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