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International Journal for Multiscale Computational Engineering
IF: 1.016 5-Year IF: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Print: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2020032920
pages 265-284


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


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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