TITLE:
Numerical-Experimental Updating Identification of Elastic Behavior of a Composite Plate Using New Multi-Objective Optimization Procedure
AUTHORS:
Samir Ghanmi, Sofiane Bouajila, Mohamed Guedri
KEYWORDS:
Composites; Finite Element Experimental Designs; Multi-Objective Optimization; Numerical-Experimental Updating Identification; Response Surfaces
JOURNAL NAME:
Journal of Surface Engineered Materials and Advanced Technology,
Vol.3 No.1,
January
29,
2013
ABSTRACT: This work focuses on the updating-based identification of the three-dimensional orthotropic elastic behavior of a thin carbon fiber reinforced plastic multilayer composite plate. This consists in identifying the engineering constants that minimize the relative deviations between the first eight experimental and three-dimensional finite element frequencies of the vibrating free plate. For this purpose, a multi-objective optimization procedure is applied; it exploits a Particle Swarm Optimizer algorithm (PSO) that is coupled to a metamodeling by the new response surfaces method procedure (NRSMP); the latter is based on numerical design experiments. The conducted sensitivity analyses indicate that the four engineering constants of the two-dimensional elasticity are the most influent.