A mixed numerical-experimental methodology for determining the elastic constants of orthotropic materials

被引：1
|
作者：
Bruno, Luigi [1 ]
Felice, Giuseppina [1 ]
Pagnotta, Leonardo [1 ]
Poggialini, Andrea [1 ]
机构：
[1] Univ Calabria, Dept Mech Engn, Ponte P Bucci CUBO 44C, Commenda Di Rende, Italy
来源：
SPECKLE06: SPECKLES, FROM GRAINS TO FLOWERS | 2006年 / 6341卷
关键词：
genetic algorithms; speckle interferometry; elastic constants; anisotropic materials;
D O I：
10.1117/12.695286
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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 fall-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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页数：6
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