Transition saddle-cylinder shape of thin unsymmetric [0/90] square plates under hygrothermal loads: fringe projection method and variational approach

Marco Gigliotti (1) , Frédéric Jacquemin (2) , Jérôme Molimard (3) , Alain Vautrin (4)

1 CIRA - Centro Italiano Ricerche Aerospaziali
2 GeM - Institut de Recherche en Génie Civil et Mécanique
3 Département Mécanique et Matériaux
4 Mines Saint-Étienne MSE - École des Mines de Saint-Étienne

The deformation of free laminated plates subjected to transient hygrothermal loading is simulated by using a semi-analytical non linear model (variational method). A full-field experimental technique, the fringe projection method, has been developed to measure out-of-plane displacements throughout the deformation process. The experimental approach based on a full-field optical method is shown to be suited to capturing the complex behaviour of plates submitted to large hygrothermal loads, where geometrical nonlinearities should be taken into account.

Mots clés: Fringe projection method; Hygrothermal loads; Nonlinear deformations; Unsymmetric 0/90 plates

Domaines: Mécanique [physics.med-ph]; Matériaux

Marco Gigliotti, Frédéric Jacquemin, Jérôme Molimard, Alain Vautrin. Transition saddle-cylinder shape of thin unsymmetric [0/90] square plates under hygrothermal loads: fringe projection method and variational approach. Applied Mechanics and Materials, 2005, 3-4, pp.217-222. ⟨10.4028/www.scientific.net/AMM.3-4.217⟩. ⟨hal-01009069⟩