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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: 0.554 SNIP: 0.82 CiteScore™: 2

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

Выпуски:
Том 18, 2020 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.2020032920
pages 265-284

MULTISCALE ANALYSIS OF ANISOTROPIC MATERIALS WITH HEXAGONAL MICROSTRUCTURE AS MICROPOLAR CONTINUA

Nicholas Fantuzzi
Department of Civil, Chemical, Environmental and Materials Engineering University of Bologna Viale del Risorgimento 2, 40136 Bologna, Italy
Patrizia Trovalusci
Department of Structural Engineering and Geotechnics Sapienza University of Rome Via Gramsci 53, 00197 Rome, Italy
R. Luciano
Engineering Department, Parthenope University, Centro Direzionale (Isola C4), 80133, Napoli, Italy

Краткое описание

This work discusses the advantages of micropolar theory in modeling anisotropic composite materials with microstructure. A homogenized constitutive model starting from a representative volume element is proposed in order to find an equivalent continuum. Classical (e.g., Cauchy of Grade 1) continua are not always suitable to accurately approximate the behavior of such composites because no size effects, nor lack of symmetries in strain and stress, can be taken into account. This study focuses on composites made of hexagonal rigid particles which interact among themselves through elastic interfaces, so that the deformation energy of the material is concentrated only at the interfaces. Three particle geometries are investigated such as orthotetragonal, auxetic, and chiral. Novel results have been achieved by presenting the behavior of panels with various material symmetries and subjected to concentrated loads.

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