Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
International Journal for Multiscale Computational Engineering
Factor de Impacto: 1.016 Factor de Impacto de 5 años: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Imprimir: 1543-1649
ISSN En Línea: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2014011640
pages 123-143

A COMPUTATIONAL APPROACH FOR EVALUATING THE EFFECTIVE ELASTIC MODULI OF NON-SPHERICAL PARTICLE REINFORCED COMPOSITES WITH INTERFACIAL DISPLACEMENT AND TRACTION JUMPS

JianTao Liu
Southwest Jiaotong University, School of Mechanical Engineering, Chengdu 610031, China
Shui Tao Gu
Hohai University, School of Mechanics and Materials, Nanjing 210098, China
Qi-Chang He
Southwest Jiaotong University, School of Mechanical Engineering, Chengdu 610031, China; Université Paris-Est, Laboratoire de Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, 5 Boulevard Descartes, 77454 Marne-la-Vallée, France

SINOPSIS

The present article proposed a numerical approach to accurately evaluate the size- and shape-dependent effective moduli of engineering heterogeneous materials containing arbitrarily shaped interfaces exhibiting both displacement and normal traction discontinuities. First, boundary condition on a representative volume element (RVE) and the effective moduli of composites involving interfacial discontinuities are precisely defined based on micromechanics. Then, a numerical approach framed within the extended finite element method (XFEM) together with the level set method (LSM) is elaborated to evaluate the averaged physical quantities over a RVE and the effective moduli of composites. Further, the unified scheme in Duan et al. (2007) to evaluate the effective moduli of composites is extended to the materials with physics-based general imperfect interfaces, and a benchmark problem is designated based on the approximated analytic formula of the effective moduli and utilized to test the validity and robustness of the elaborated numerical approach. All predictions show good agreement with the relevant analytic results. Finally, the numerical approach validated is applied to investigate the size- and shape-dependent effective moduli of composites and some concluding remarks are given.


Articles with similar content:

Generalized Mathematical Homogenization of Atomistic Media at Finite Temperatures
International Journal for Multiscale Computational Engineering, Vol.3, 2005, issue 4
Yuye Tang, Wen Chen, Jacob Fish
COMPUTATIONAL HOMOGENIZATION METHOD AND REDUCED DATABASE MODEL FOR HYPERELASTIC HETEROGENEOUS STRUCTURES
International Journal for Multiscale Computational Engineering, Vol.11, 2013, issue 3
Julien Yvonnet, Qi-Chang He, Eric Monteiro
A MULTISCALE MODEL OF RATE DEPENDENCE OF NANOCRYSTALLINE THIN FILMS
International Journal for Multiscale Computational Engineering, Vol.10, 2012, issue 5
Fernando V. Stump, Ioannis Chasiotis, Nikhil Karanjgaokar, Philippe H. Geubelle
SOME GENERAL REPRESENTATIONS IN THERMOPERISTATICS OF RANDOM STRUCTURE COMPOSITES
International Journal for Multiscale Computational Engineering, Vol.12, 2014, issue 4
Valeriy A. Buryachenko
PERTURBATION-BASED STOCHASTIC MICROSCOPIC STRESS ANALYSIS OF A PARTICLE-REINFORCED COMPOSITE MATERIAL VIA STOCHASTIC HOMOGENIZATION ANALYSIS CONSIDERING UNCERTAINTY IN MATERIAL PROPERTIES
International Journal for Multiscale Computational Engineering, Vol.9, 2011, issue 4
F. Ashida, Sei-ichiro Sakata, K. Enya