Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/46449
Title: Numerical behavior of models of composite materials in E'NDT at "Low" frequencies
Authors: Barbato, Lucio
Minucci, Simone 
Rubinacci, Guglielmo
Tamburrino, Antonello
Ventre, Salvatore
Issue Date: 2014
Abstract: 
In this paper the numerical modeling of composite materials in view of Nondestructive Testing is considered. The composite material is assumed to be modeled at the macroscopic scale by a possibly complex dielectric permittivity tensor. The material is probed by means of an electromagnetic field having wavelength much larger than the relevant geometrical dimensions. As well known, the numerical modeling is critical especially in this "low-frequency" regime where a strong ill-conditioning of the relevant stiffness matrix typically occur (the so-called low-frequency breakdown problem). The proposednumerical model is robust w.r.t. this underlying ill-conditioning. © 2014 The authors and IOS Press.
URI: http://hdl.handle.net/2067/46449
ISBN: 9781614994060
DOI: 10.3233/978-1-61499-407-7-77
Appears in Collections:B1. Contributo in volume (Capitolo o Saggio)

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