Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal for Multiscale Computational Engineering
Импакт фактор: 1.016 5-летний Импакт фактор: 1.194 SJR: 0.452 SNIP: 0.68 CiteScore™: 1.18

ISSN Печать: 1543-1649
ISSN Онлайн: 1940-4352

Выпуски:
Том 17, 2019 Том 16, 2018 Том 15, 2017 Том 14, 2016 Том 13, 2015 Том 12, 2014 Том 11, 2013 Том 10, 2012 Том 9, 2011 Том 8, 2010 Том 7, 2009 Том 6, 2008 Том 5, 2007 Том 4, 2006 Том 3, 2005 Том 2, 2004 Том 1, 2003

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v8.i3.50
pages 287-301

A Multiscale Finite Element Approach for Buckling Analysis of Elastoplastic Long Fiber Composites

Saeid Nezamabadi
Laboratoire de Mécanique et Génie Civil (LMGC), UMR 5508 CNRS
Hamid Zahrouni
Universite Paul Verlaine de Metz, Laboratoire de Physique et Mecanique des Materiaux, FRE CNRS 3236, Ile du Saulcy 57045, Metz Cedex 01 France
Julien Yvonnet
Universite Paris-Est, Laboratoire Modelisation et simulation Multi Echelle, 5 Bd Descartes, F-77454 Marne-la-Vallee Cedex 2, France
Michel Potier-Ferry
Universite Paul Verlaine de Metz, Laboratoire de Physique et Mecanique des Materiaux, FRE CNRS 3236, Ile du Saulcy 57045, Metz Cedex 01 France

Краткое описание

The present work is devoted to the microbuckling analysis of long fiber composites. A multiscale finite element method (FE2) is combined with the asymptotic numerical method (ANM) to study the elastoplastic instability which may occur in structures at both macroscopic and microscopic scales. The fiber is described by a linear material constitutive law, while the matrix phase is described by a nonlinear Ramberg-Osgood relationship. The stress field is then obtained via the total mechanical strain without any history dependence. Large strains are considered, which induce geometrical nonlinearities in both cases. The ANM framework allows obtaining complex response curves involving limit points in loading and displacement to be obtained. In the present path following procedure, adjustment of the step length is naturally automatic because the validity range of the asymptotic solution is a posteriori estimated depending on the local nonlinearity of the response branches. Numerical examples show the effectiveness of the proposed approach by investigating microscopic and macroscopic instabilities of long fiber composite structures in compression.


Articles with similar content:

FINITE STRAINS: OBJECTIVE RATES, CONJUGATE STRESS TENSORS, CONSTITUTIVE EQUATIONS FOR COMPOSITE MATERIALS
Composites: Mechanics, Computations, Applications: An International Journal, Vol.1, 2010, issue 2
Alexander I. Golovanov
Multiscale Modeling of Composite Materials by a Multifield Finite Element Approach
International Journal for Multiscale Computational Engineering, Vol.3, 2005, issue 4
Patrizia Trovalusci, V. Sansalone, F. Cleri
Multiscale Total Lagrangian Formulation for Modeling Dislocation-Induced Plastic Deformation in Polycrystalline Materials
International Journal for Multiscale Computational Engineering, Vol.4, 2006, issue 1
Jiun-Shyan Chen, Nasr M. Ghoniem, Xinwei Zhang, Shafigh Mehraeen
Crack-Centered Enrichment for Debonding in Two-Phase Composite Applied to Textile Reinforced Concrete
International Journal for Multiscale Computational Engineering, Vol.7, 2009, issue 4
Jakub Jerabek, Frank Peiffer, Rostislav Chudoba
Homogeneous Analysis of Periodic Assemblies of Elastoplastic Disks in Contact
International Journal for Multiscale Computational Engineering, Vol.1, 2003, issue 4
Hongwu Zhang, D. P. Boso, Bernhard Schrefler