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Materials 2013, 6(1), 1-17; doi:10.3390/ma6010001

A Refined Finite Element Formulation for the Microstructure-Dependent Analysis of Two-Dimensional (2D) Lattice Materials

Department of Civil Engineering, University of Salerno, Fisciano 84084, Italy
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Received: 28 September 2012 / Revised: 12 December 2012 / Accepted: 14 December 2012 / Published: 20 December 2012
View Full-Text   |   Download PDF [356 KB, 24 December 2012; original version 20 December 2012]   |  

Abstract

A finite element approximation is proposed for the dynamic analysis of two-dimensional (2D) lattice materials. The unit cell is modeled by means of a defined number of shear deformable micro-beams. The main innovative feature concerns the presence of a microstructure-dependent scale length, which allows the consideration of the so called size-effect that can be highly relevant, due to the characteristics of the lattice at the local scale. Some numerical results show the influence of the microstructure parameter on the dynamic behavior of two-dimensional lattice materials. View Full-Text
Keywords: lattice materials; band gaps; couple stress theory; finite element analysis lattice materials; band gaps; couple stress theory; finite element analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Mancusi, G.; Feo, L. A Refined Finite Element Formulation for the Microstructure-Dependent Analysis of Two-Dimensional (2D) Lattice Materials. Materials 2013, 6, 1-17.

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