Results 21 to 30 of about 156,707 (246)

One-step Monte Carlo global homogenization based on RMC code

open access: yesNuclear Engineering and Technology, 2019
Due to the limitation of the computers, the conventional homogenization method is based on many assumptions and approximations, and some tough problems such as energy spectrum and boundary condition are faced. To deal with those problems, the Monte Carlo
Qingquan Pan, Kan Wang
doaj   +1 more source

Effective thermal conductivity of porous materials and composites as a function of fundamental structural parameters

open access: yesComputer Assisted Methods in Engineering and Science, 2017
We conducted thermal conductivity investigations by homogenization. This method can effectively model structural features such as pores within dispersed particle architectures via a finite element mesh.
Yusuke Asakuma, Tsuyoshi Yamamoto
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

A numerical approach for estimating the effective elastic properties of honeycomb structures

open access: yesVietnam Journal of Mechanics, 2015
This paper presents a method for calculating effective elastic moduli of honeycomb core of sandwich plates. The theory is based on the homogenization method for periodic composite materials.
Nguyen Trung Kien, Nguyen Anh Minh
doaj   +1 more source

Sound transmission loss of particulate filter of exhaust system by homogenization method

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Diesel or gasoline particulate filters are included in almost all vehicles to clean emission gas from internal combustion engines. On the other hand, a new regulation for vehicle noise emission has been into operation, and noise from exhaust system must ...
Yusuke AKIMOTO   +2 more
doaj   +1 more source

Homogenization of an interface highly oscillating between two concentric ellipses

open access: yesVietnam Journal of Mechanics, 2012
The main purpose of this paper is to find the homogenized equation and the associate continuity conditions in the explicit form of a boundary-value problem in a two-dimensional domain with an interface oscillating rapidly between two concentric ellipses.
Do Xuan Tung   +2 more
doaj   +1 more source

Asymptotic Preserving numerical schemes for multiscale parabolic problems [PDF]

open access: yes, 2015
We consider a class of multiscale parabolic problems with diffusion coefficients oscillating in space at a possibly small scale $\varepsilon$. Numerical homogenization methods are popular for such problems, because they capture efficiently the asymptotic
Crouseilles, Nicolas   +2 more
core   +6 more sources

Robust Topology Optimization for Compliant Mechanisms Considering Uncertainty of Applied Loads

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
In this study, a robust topology optimization method is proposed for compliant mechanisms, where the effect that variation of the input load direction has on the output displacement is considered.
Nozomu KOGISO   +4 more
doaj   +1 more source

A New Estimate for the Homogenization Method for Second-Order Elliptic Problem with Rapidly Oscillating Periodic Coefficients

open access: yesJournal of Function Spaces, 2021
In this paper, we will investigate a multiscale homogenization theory for a second-order elliptic problem with rapidly oscillating periodic coefficients of the form ∂/∂xiaijx/ε,x∂uεx/∂xj=fx.
Xiong Liu, Wenming He
doaj   +1 more source

Numerical Methods for Multilattices [PDF]

open access: yes, 2012
Among the efficient numerical methods based on atomistic models, the quasicontinuum (QC) method has attracted growing interest in recent years. The QC method was first developed for crystalline materials with Bravais lattice and was later extended to ...
Abdulle A.   +6 more
core   +2 more sources

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