Results 1 to 10 of about 17,957,678 (238)

Fully Discrete Interpolation Coefficients Mixed Finite Element Methods for Semi-Linear Parabolic Optimal Control Problem

open access: yesIEEE Access, 2022
We use the fully discrete interpolation coefficient mixed finite element methods to solve the semi-linear parabolic optimal control problems. The space discretization of the state variable is separated using interpolation coefficient mixed finite ...
Jing Wang   +3 more
doaj   +1 more source

Slate: extending Firedrake's domain-specific abstraction to hybridized solvers for geoscience and beyond [PDF]

open access: yesGeoscientific Model Development, 2020
Within the finite element community, discontinuous Galerkin (DG) and mixed finite element methods have become increasingly popular in simulating geophysical flows.
T. H. Gibson   +3 more
doaj   +1 more source

Evaluation of Mixed Structural Steel lap Joints Using Experimental and Finite Element Methods [PDF]

open access: yesPort Said Engineering Research Journal, 2016
Connections in engineering structures such as aircraft, marine and automotive should be designed to fulfill the intended level of safety, serviceability, durability, and the ability to withstand the stresses applied on global structures.
Ebtisam Abdel-Gwad   +3 more
doaj   +1 more source

Stress-strain state of shell of revolution analysis by using various formulations of three-dimensional finite elements

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2020
The aim of the work is to perform a comparative analysis of the results of analyzing arbitrarily loaded shells of revolution using finite element method in various formulations, namely, in the formulation of the displacement method and in the mixed ...
Natalia A. Gureeva   +3 more
doaj   +1 more source

Superconvergence of Semidiscrete Splitting Positive Definite Mixed Finite Elements for Hyperbolic Optimal Control Problems

open access: yesAdvances in Mathematical Physics, 2022
In this paper, we consider semidiscrete splitting positive definite mixed finite element methods for optimal control problems governed by hyperbolic equations with integral constraints.
Yuchun Hua, Yuelong Tang
doaj   +1 more source

Numerical Solution of Burgers’ Equation Based on Mixed Finite Volume Element Methods

open access: yesDiscrete Dynamics in Nature and Society, 2020
In this article, mixed finite volume element (MFVE) methods are proposed for solving the numerical solution of Burgers’ equation. By introducing a transfer operator, semidiscrete and fully discrete MFVE schemes are constructed. The existence, uniqueness,
Jie Zhao, Hong Li, Zhichao Fang, Xue Bai
doaj   +1 more source

Seepage analysis based on weak finite element method

open access: yesYantu 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
doaj   +1 more source

Comparative analysis of finite element formulations at plane loading of an elastic body

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2020
The aim of the work - comparison of the results of determining the parameters of the stress-strain state of plane-loaded elastic bodies based on the finite element method in the formulation of the displacement method and in the mixed formulation. Methods.
Natalia A. Gureeva   +2 more
doaj   +1 more source

Mixed Integration Scheme for Embedded Discontinuous Interfaces by Extended Finite Element Method

open access: yesFrontiers in Earth Science, 2022
The extended Finite Element Method (XFEM) is derived from the traditional finite element method for discontinuous problems. It can simulate the behavior of cracks, which significantly improves the ability of finite element methods to simulate ...
Peng Yu   +4 more
doaj   +1 more source

Interval Analysis of Vibro-Acoustic Systems by the Enclosing Interval Finite-Element Method

open access: yesApplied Sciences, 2022
Traditional interval analysis methods for interior vibro-acoustic system with uncertain-but-bounded parameters are based on interval perturbation theory.
Yujia Xiang, Zhiyu Shi
doaj   +1 more source

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