A micromechanics-enhanced finite element formulation for modelling heterogeneous materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00188654" target="_blank" >RIV/68407700:21110/12:00188654 - isvavai.cz</a>

Výsledek na webu

<a href="http://arxiv.org/abs/1103.5633" target="_blank" >http://arxiv.org/abs/1103.5633</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cma.2011.09.003" target="_blank" >10.1016/j.cma.2011.09.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A micromechanics-enhanced finite element formulation for modelling heterogeneous materials

Popis výsledku v původním jazyce

In the analysis of composite materials with heterogeneous microstructures, full resolution of the heterogeneities using classical numerical approaches can be computationally prohibitive. This paper presents a micromechanics-enhanced finite element formulation that accurately captures the mechanical behaviour of heterogeneous materials in a computationally efficient manner. The strategy exploits analytical solutions derived by Eshelby for ellipsoidal inclusions in order to determine the mechanical perturbation fields as a result of the underlying heterogeneities. Approximation functions for these perturbation fields are then incorporated into a finite element formulation to augment those of the macroscopic fields. A significant feature of this approachis that the finite element mesh does not explicitly resolve the heterogeneities and that no additional degrees of freedom are introduced. In this paper, Hybrid-Trefftz stress finite elements are utilised and performance of the proposed fo

Název v anglickém jazyce

A micromechanics-enhanced finite element formulation for modelling heterogeneous materials

Popis výsledku anglicky

In the analysis of composite materials with heterogeneous microstructures, full resolution of the heterogeneities using classical numerical approaches can be computationally prohibitive. This paper presents a micromechanics-enhanced finite element formulation that accurately captures the mechanical behaviour of heterogeneous materials in a computationally efficient manner. The strategy exploits analytical solutions derived by Eshelby for ellipsoidal inclusions in order to determine the mechanical perturbation fields as a result of the underlying heterogeneities. Approximation functions for these perturbation fields are then incorporated into a finite element formulation to augment those of the macroscopic fields. A significant feature of this approachis that the finite element mesh does not explicitly resolve the heterogeneities and that no additional degrees of freedom are introduced. In this paper, Hybrid-Trefftz stress finite elements are utilised and performance of the proposed fo

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GP103%2F09%2FP490" target="_blank" >GP103/09/P490: Simulace heterogenních materiálů založené na numerickém řešení integrálních rovnic</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Computer Methods in Applied Mechanics and Engineering

ISSN

0045-7825

e-ISSN

—

Svazek periodika

201-204

Číslo periodika v rámci svazku

—

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

53-64

Kód UT WoS článku

000298570500005

EID výsledku v databázi Scopus

—