Results 11 to 20 of about 156,707 (246)

A Homogenization Method for Replacement Stator Models in an Aero-Engine

open access: yesAerospace, 2022
Generally, the high-fidelity finite element models of aero-engines comprise millions of degrees of freedom (DOFs). Although they can provide precise predictions of structural dynamics, the computational cost will be often unaffordable if appropriate ...
Wenjun Wang   +4 more
doaj   +1 more source

Multiscale Calculation of Elastic Modulus of Cement Paste Based on Grid Nanoindentation Technology

open access: yesShanghai Jiaotong Daxue xuebao, 2022
The calculation of multiscale elastic parameters of cementitious materials based on micromechanical tests and the composite material theory is one of the key theoretical bases for precise design of cementitious materials performance.
CHEN Xiaowen, HAN Yudong, DING Xiaoping, HOU Dongwei
doaj   +1 more source

Topological optimization algorithm for mechanical-electrical coupling of periodic composite materials

open access: yesElectronic Research Archive, 2023
In this paper, a topology optimization algorithm for the mechanical-electrical coupling problem of periodic composite materials is studied. Firstly, the homogenization problem of the mechanical-electrical coupling topology optimization problem of ...
Ziqiang Wang, Chunyu Cen , Junying Cao
doaj   +1 more source

Multiscale computational first order homogenization of thick shells for the analysis of out-of-plane loaded masonry walls [PDF]

open access: yes, 2017
This work presents a multiscale method based on computational homogenization for the analysis of general heterogeneous thick shell structures, with special focus on periodic brick-masonry walls.
Camata, Guido   +5 more
core   +2 more sources

Effective boundary condition for the reflection of shear waves at the periodic rough boundary of an elastic body

open access: yesVietnam Journal of Mechanics, 2018
We present a homogenization method to treat the problem of the reflection of waves at the free boundary of an elastic body, the edge being structured periodically at the subwavelength scale.
Agnès Maurel   +2 more
doaj   +1 more source

Three scales asymptotic homogenization and its application to layered hierarchical hard tissues [PDF]

open access: yes, 2018
In the present work a novel multiple scales asymptotic homogenization approach is proposed to study the effective properties of hierarchical composites with periodic structure at different length scales.
Bravo-Castillero, Julián   +8 more
core   +2 more sources

Explicit homogenized equation of a boundary-value problem in two-dimensional domains separated by an interface highly oscillating between two concentric ellipses

open access: yesArchives of Mechanics, 2012
The main purpose of this paper is to find the homogenized equation and the associate continuity condition in the explicit form of a boundary-value problem in two-dimensional domains separated by an interface oscillating rapidly between two concentric ...
P.C. Vinh, D.X. Tung
doaj   +1 more source

Concurrent multi-scale shape optimization for micro and macro shape design of structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this study, we propose a novel shape optimization method for designing micro- and macro-structures concurrently. We assume the macro-structure consists of several arbitrary domains, which have different periodic micro-structures.
Minami FUJIOKA, Masatoshi SHIMODA
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

Micropore shape optimization for natural vibration design of porous structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this paper, we present a shape optimization method for periodic microstructures to maximize a specified vibration eigenvalue of a porous macrostructure.
Junpei FUJITA, Masatoshi SHIMODA
doaj   +1 more source

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