Interactions between numerical and experimental approaches in composite structure dynamics

The objective of this paper is to investigate the interactions linking mode ls and experiments in the dynamics of composite structures. It concerns the validation of predictive models and the characterization of materials. The analysis is supported by the synthesis of four studies and two industrial applications. The numerical models essentially use the finite element metho d and the experimental modal analysis focuses on natural frequencies, mode shapes, frequency response and damping. In conclusion, certain points of th e mixed approach are highlighted and it appears in particular that reciproc ation between simulations and tests is frequent and often necessary to impr ove the efficiency of the design process. (C) 1998 Elsevier Science Ltd. Al l rights reserved.