Transition Saddle-Cylinder Shape of Thin Unsymmetric [0/90] Square Plates under Hygrothermal Loads: Fringe Projection Method and Variational Approach
Résumé
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.