Numerical-Experimental Updating Identification of Elastic Behavior of a Composite Plate Using New Multi-Objective Optimization Procedure

Samir Ghanmi, Sofiane Bouajila, Mohamed Guedri

Higher Institute of Technological Studies of Nabeul, Tunisia.
Higher School of Science and Technology of Tunis, Tunisia.
Nabeul Preparatory Engineering Institute-IPEIN, Nabeul, Tunisia.

DOI: 10.4236/jsemat.2013.31003                

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.

Keywords

Composites; Finite Element Experimental Designs; Multi-Objective Optimization; Numerical-Experimental Updating Identification; Response Surfaces

Conflicts of Interest

The authors declare no conflicts of interest.

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