Results 21 to 30 of about 2,030,934 (244)

Numerical homogenization of multi-scale heterogeneous media

open access: yesГеофизический журнал, 2012
A problem of electrical potential distribution in media, containing micro-inclusions with highly contrasting physical properties and different geometric shapes, was considered. Multiscale finite element method has been chosen as a solver.
M. I. Epov   +2 more
doaj   +1 more source

Finite element heterogeneous multiscale methods for the wave equation [PDF]

open access: yes, 2013
Wave phenomena appear in a wide range of applications such as full-waveform seismic inversion, medical imaging, or composite materials. Often, they are modeled by the acoustic wave equation.
Stohrer, Christian
core   +1 more source

Two-Scale Topology Optimization with Isotropic and Orthotropic Microstructures

open access: yesDesigns, 2022
Advances in additive manufacturing enable the fabrication of complex structures with intricate geometric details, which bring opportunities for high-resolution structure design and transform the potential of functional product development.
Sina Rastegarzadeh, Jun Wang, Jida Huang
doaj   +1 more source

Comparison of Two Methods for Numerical Upscaling

open access: yesEngineering Transactions, 2016
The main objective of this paper is to compare two discretization-based homogenization methods. A local numerical homogenization and a multiscale finite element method (MsFEM) are first briefly presented and next numerically tested. In the case of MsFEM,
Marek KLIMCZAK, Witold CECOT
doaj   +1 more source

Damage-property analysis of carbon fiber-reinforced plastic based on homogenization theory

open access: yesMechanical Engineering Journal, 2020
In this study, the damage-development behavior of carbon fiber-reinforced plastic (CFRP) laminates considering the nonlinear mechanical properties of a matrix resin was investigated through a numerical simulation based on a homogenization theory and ...
Keita GOTO   +2 more
doaj   +1 more source

Scale transition and enforcement of RVE boundary conditions in second-order computational homogenization [PDF]

open access: yes, 2007
Formulation of the scale transition equations coupling the microscopic and macroscopic variables in the second-order computational homogenization of heterogeneous materials and the enforcement of generalized boundary conditions for the representative ...
Bicanic, Nenad   +5 more
core   +1 more source

Homogenization of sandwich panels

open access: yesComputer Assisted Methods in Engineering and Science, 2017
The numerical modeling of plates with periodic corrugation requires some efforts to be made in terms of careful and precise discretization of the complicated structure. This automatically generates very computationally expensive models.
Aleksander Marek, Tomasz Garbowski
doaj   +1 more source

Rapid biotic homogenization of marine fish assemblages [PDF]

open access: yes, 2015
We acknowledge support from ERC advanced grant BioTIME (250189). A.E.M. also thanks the Royal Society. M.D. is grateful for support from the Scottish Funding Council (MASTS-grant reference HR09011). N.J.G. is supported by U. S.
Gotelli, Nicholas J   +12 more
core   +1 more source

Elastic Analysis of Three-Layer Concrete Slab Based on Numerical Homogenization with an Analytical Shear Correction Factor

open access: yesApplied Sciences, 2022
Sandwich structures are widely used in construction, as well as in the aviation, spaceship, and electronics industries. The interesting result, among others, is the fact that individual layers can be freely selected to meet the planned requirements.
Natalia Staszak   +2 more
doaj   +1 more source

Crushing of Single-Walled Corrugated Board during Converting: Experimental and Numerical Study

open access: yesEnergies, 2021
Corrugated cardboard is an ecological material, mainly because, in addition to virgin cellulose fibers also the fibers recovered during recycling process are used in its production.
Tomasz Garbowski   +3 more
doaj   +1 more source

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