Results 21 to 30 of about 65,683 (285)

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

METHODS FOR CALCULATION OF SELF-SHIELDED CROSS SECTIONS OF FULLY CERAMIC MICRO-ENCAPSULATED FUEL DOUBLE HETEROGENEOUS SYSTEM [PDF]

open access: yesEPJ Web of Conferences, 2021
Fully ceramic micro-encapsulated (FCM) fuel is a kind of fuel that employs tri-structural isotropic (TRISO) particles to enhance safety. The FCM fuel assembly is a double heterogeneous system.
He Qingming   +5 more
doaj   +1 more source

Two-dimensional wave propagation in layered periodic media [PDF]

open access: yes, 2014
We study two-dimensional wave propagation in materials whose properties vary periodically in one direction only. High order homogenization is carried out to derive a dispersive effective medium approximation.
de Luna, Manuel Quezada   +1 more
core   +3 more sources

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

A jigsaw puzzle framework for homogenization of high porosity foams [PDF]

open access: yes, 2016
An approach to homogenization of high porosity metallic foams is explored. The emphasis is on the \Alporas{} foam and its representation by means of two-dimensional wire-frame models.
Crombez, Geert   +5 more
core   +6 more sources

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

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

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

Mathematical Models for Predicting the Elastic and Thermal Behavior of Heterogeneous Materials through Curve Fitting

open access: yesApplied Sciences, 2023
The aim of this study is to establish a new method for predicting the effective elastic and thermal behavior of heterogeneous materials through mathematical curve fitting.
Hamdi Beji   +4 more
doaj   +1 more source

A priori error analysis for transient problems using Enhanced Velocity approach in the discrete-time setting [PDF]

open access: yes, 2018
Time discretization along with space discretization is important in the numerical simulation of subsurface flow applications for long run. In this paper, we derive theoretical convergence error estimates in discrete-time setting for transient problems ...
Amanbek, Yerlan, Wheeler, Mary
core   +2 more sources

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