Optimization of the Unnotched Iosipescu Test on Composites for Identification from Full-Field Measurements

Fabrice Pierron 1 Guillaume Vert 1, 2 Richard Burguete 2 Stéphane Avril 1 René Rotinat 1 M. Wisnom 3
1 LMPF - Laboratoire de Mécanique et Procédés de Fabrication
2 Airbus UK, Structures CoC
3 Departement of Aerospace Engineering
Abstract : The paper presents the use of an optimization routine in order to find the best combinaison of free length and fibre angle in an unnotched Iosipescu test processed with the virtual fields procedure are used to build up a cost function aiming at balancing out the different coefficients of the three main orthotropic stiffnesses so that the same confidence level can be reached on these three stiffnesses. Then, experimental validation was performed using an ESPI system. Full-fields were measured and stiffnesses identified and compared to the usual 0°,30 nm configuration. The outcome of the optimization was confirmed by testing the same specimen result on the way to the design of a new test for orthotropic stiffness identifaction on a single specimen form full-field measurements.
Keywords : Inverse method speckle interferometry identification heterogeneous test
Type de document :
Article dans une revue
Applied Mechanics and Materials, Trans Tech Publications, 2006, 5-6, pp.125-134. 〈10.4028/www.scientific.net/AMM.5-6.125〉
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https://hal-emse.ccsd.cnrs.fr/emse-00505295
Contributeur : Pierre Charles Pinoli <>
Soumis le : vendredi 23 juillet 2010 - 11:31:37
Dernière modification le : jeudi 7 février 2019 - 16:40:31

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Fabrice Pierron, Guillaume Vert, Richard Burguete, Stéphane Avril, René Rotinat, et al.. Optimization of the Unnotched Iosipescu Test on Composites for Identification from Full-Field Measurements. Applied Mechanics and Materials, Trans Tech Publications, 2006, 5-6, pp.125-134. 〈10.4028/www.scientific.net/AMM.5-6.125〉. 〈emse-00505295〉

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