Results 21 to 30 of about 1,173,141 (265)

A posteriori error control for fully discrete Crank–Nicolson schemes [PDF]

open access: yes, 2012
We derive residual-based a posteriori error estimates of optimal order for fully discrete approximations for linear parabolic problems. The time discretization uses the Crank--Nicolson method, and the space discretization uses finite element spaces that ...
Bänsch, E   +2 more
core   +2 more sources

ABOUT SOLUTION OF MULTIPOINT BOUNDARY PROBLEMS OF THREE-DIMENSIONAL STRUCTURAL ANALYSIS WITH THE USE OF COMBINED APPLICATION OF FINITE ELEMENT METHOD AND DISCRETE-CONTINUAL FINITE ELEMENT METHOD. PART 1: FORMULATION AND BASIC PRINCIPLES OF APPROXIMATION

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2018
The distinctive paper is devoted to formulation and basic principles of approximation of multipoint boundary problem of static analysis of three-dimensional structure with the use of combined application of finite element method and discrete-continual ...
Pavel A. Akimov, Oleg A. Negrozov
doaj   +1 more source

Rod-Bonded Discrete Element Method

open access: yesGraphical Models
The Bonded Discrete Element Method (BDEM) has raised interests in the graphics community in recent years because of its good performance in fracture simulations.
Kangrui Zhang   +3 more
doaj   +1 more source

LOCALIZATION OF SOLUTION OF THE PROBLEM OF THREE-DIMENSIONAL THEORY OF ELASTICITY WITH THE USE OF B-SPLINE DISCRETE-CONTINUAL FINITE ELEMENT METHOD

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2023
Localization of solution of the problem of three-dimensional theory of elasticity with the use of B-spline discrete-continual finite element method (specific version of wavelet-based discrete-continual finite ele-ment method) is under consideration in ...
Marina Mozgaleva, Pavel Akimov
doaj   +1 more source

Enriched Stone-type dualities [PDF]

open access: yes, 2017
A common feature of many duality results is that the involved equivalence functors are liftings of hom-functors into the two-element space resp. lattice.
Hofmann, Dirk, Nora, Pedro
core   +2 more sources

Review of calibration strategies for discrete element model in quasi-static elastic deformation

open access: yesScientific Reports, 2023
This study first reviewed theories of the mechanical response of structures under loading, and the discrete element method provides a route for studying mechanical response including elastic deformation and structure failure.
Xianyang Liu   +3 more
doaj   +1 more source

Analysis of a Darcy-Cahn-Hilliard Diffuse Interface Model for the Hele-Shaw Flow and its Fully Discrete Finite Element Approximation

open access: yes, 2013
In this paper we present PDE and finite element analyses for a system of partial differential equations (PDEs) consisting of the Darcy equation and the Cahn-Hilliard equation, which arises as a diffuse interface model for the two phase Hele-Shaw flow. We
G., Steven Wise, Xiaobing Feng
core   +1 more source

Interfacing Finite Element and Boundary Element Discretizations

open access: yesApplied Mathematical Modelling, 1981
This paper reviews critically various implementation methods for coupling a mechanical finite element model to an infinite external acoustic domain discretized through boundary-element techniques. The associated physical problem is that of a three-dimensional structure submerged in an acoustic fluid, and impinged by a pressure shock wave.
openaire   +2 more sources

ABOUT SOLUTION OF MULTIPOINT BOUNDARY PROBLEMS OF TWO-DIMENSIONAL STRUCTURAL ANALYSIS WITH THE USE OF COMBINED APPLICATION OF FINITE ELEMENT METHOD AND DISCRETE-CONTINUAL FINITE ELEMENT METHOD PART 1: FORMULATION AND BASIC PRINCIPLES OF APPROXIMATION

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2017
The distinctive paper is devoted to formulation and basic principles of approximation of multipoint boundary problem of static analysis of deep beam with the use of combined application of finite element method and discrete-continual finite element ...
Pavel A Akimov   +2 more
doaj   +1 more source

Evaluating the Seismic Capacity of Dry-Joint Masonry Arch Structures via the Combined Finite-Discrete Element Method

open access: yesApplied Sciences, 2021
The behaviour of dry-joint masonry arch structures is highly nonlinear and discontinuous since they are composed of individual discrete blocks. These structures are vulnerable to seismic excitations.
Wangpeng Li   +4 more
doaj   +1 more source

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