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Proceedings Paper

A mixed numerical-experimental methodology for determining the elastic constants of orthotropic materials
Author(s): Luigi Bruno; Giuseppina Felice; Leonardo Pagnotta; Andrea Poggialini
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Paper Abstract

The present paper describes a hybrid method which combines finite element analyses and genetic algorithms (GAs) for determining the elastic properties of isotropic and anisotropic materials from the full-field measurement of the displacements of plates under flexural loads. An optimized procedure based on GAs updates iteratively the elastic constants in a numerical model until the displacements obtained by numerical analysis fit the experimental data. The unknown parameters are identified simultaneously by a single test and without damaging the structure. The procedure was applied to both isotropic (aluminum) and anisotropic (Graphite/PEEK unidirectional laminate) specimens.

Paper Details

Date Published: 15 September 2006
PDF: 6 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63410J (15 September 2006); doi: 10.1117/12.695286
Show Author Affiliations
Luigi Bruno, Univ. of Calabria (Italy)
Giuseppina Felice, Univ. of Calabria (Italy)
Leonardo Pagnotta, Univ. of Calabria (Italy)
Andrea Poggialini, Univ. of Calabria (Italy)

Published in SPIE Proceedings Vol. 6341:
Speckle06: Speckles, From Grains to Flowers
Pierre Slangen; Christine Cerruti, Editor(s)

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