15 September 2006 A mixed numerical-experimental methodology for determining the elastic constants of orthotropic materials
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Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63410J (2006) https://doi.org/10.1117/12.695286
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France
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.
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Luigi Bruno, Luigi Bruno, Giuseppina Felice, Giuseppina Felice, Leonardo Pagnotta, Leonardo Pagnotta, Andrea Poggialini, Andrea Poggialini, } "A mixed numerical-experimental methodology for determining the elastic constants of orthotropic materials", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63410J (15 September 2006); doi: 10.1117/12.695286; https://doi.org/10.1117/12.695286
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