Results 11 to 20 of about 2,030,934 (244)

The role of numerical integration in numerical homogenization* [PDF]

open access: yesESAIM: Proceedings and Surveys, 2015
Finite elements methods (FEMs) with numerical integration play a central role in numerical homogenization methods for partial differential equations with multiple scales, as the effective data in a homogenization problem can only be ...
Abdulle Assyr
doaj   +3 more sources

Wavelet-based numerical homogenization

open access: yes, 1998
A numerical homogenization procedure for elliptic differential equations is presented. It is based on wavelet decompositions of discrete operators in find and coarse scale components followed by the elemination of the fine scale contributions.
Engquist, Björn,, Dorobantu, M
core   +8 more sources

Homogenization in integral viscoelasticity [PDF]

open access: yes, 2001
A multi-phase periodic composite subjected to inhomogeneous shrinkage and mechanical loads including prescribed interface jumps of displacements and tractions is considered.
Mikhailov, SE, Orlik, J
core   +6 more sources

Characterization of Pultruded Glass-Fiber Reinforced Polymers with Two-Step Homogenization

open access: yesMaterials Research, 2022
The aim of this work is to determine effective elastic properties of pultruded Glass Fiber Reinforced Polymer using micro-CT in conjunction with a two-step numerical homogenization technique.
Rafael da S. Vianna   +3 more
doaj   +1 more source

Subsampling and homogenization to investigate variability of composite material mechanical properties [PDF]

open access: yes, 2012
This paper presents an innovative homogenization sampling technique applied to multiscale modelling of composite materials. The goal is to build efficiently statistical variability of mechanical properties at mesoscopic scale from the heterogeneous media
DAU, Frédéric, PINEAU, Pierre
core   +1 more source

Metric Based Upscaling for Partial Differential Equations with a Continuum of Scales [PDF]

open access: yes, 2007
Numerical upscaling of problems with multiple scale structures have attracted increasing attention in recent years. In particular, problems with non-separable scales pose a great challenge to mathematical analysis and simulation.
Zhang, Lei
core   +1 more source

Parallel evolutionary optimization in multiscale problems [PDF]

open access: yesComputer Methods in Materials Science, 2009
The paper is devoted to optimization in multiscale problems. The composite modelled as a macrostructure with a local periodic microstructure is considered. The multiscale analysis is performed with the use of the homogenization method.
Wacław Kuś, Tadeusz Burczyński
doaj   +1 more source

Homogenization in strength and durability analysis of reinforced tooth filling [PDF]

open access: yes, 2002
An asymptotic homogenization procedure is employed to obtain effective elastic properties of the composite tooth filling, a homogenized macro– stress field and a first approximation to the micro-stress field, from properties of the components and applied
Mikhailov, SE, Orlik, J
core   +6 more sources

Application of hp-adaptive FEM, local numerical homogenization and discrete element method to modeling of asphalt pavement structures [PDF]

open access: yesComputer Methods in Materials Science, 2013
This paper presents a novel approach to modeling of asphalt pavement structures. Analysed medium exhibits a complex behaviour due to its specific structure.
Marek Klimczak   +2 more
doaj   +1 more source

Homogenization Topology Optimization Method Based on Continuous Field

open access: yesAdvances in Mechanical Engineering, 2010
In order to overcome numerical instabilities such as checkerboards, meshdependence in topology optimization of continuum structures, a new implementation combined with homogenization method without introducing any additional constraint parameter is ...
Hongwei Zhao, Kai Long, Z.-D. Ma
doaj   +1 more source

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