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Vibrations of composite plates with SMA fibres in a gas stream with defects of the type of delamination

By W Ostachowicz and Stefan Kaczmarczyk

Abstract

The dynamics of a multi-layer composite plate with delaminations subjected to an aerodynamic load is analysed. A finite element model to predict the dynamic response of the system with embedded shape memory alloys (SMA) fibres is proposed. The effect of delamination on the natural frequencies of the plate subjected to supersonic flow is studied, and the flutter instability boundaries are determined. The numerical model developed is applied to show that the SMA fibres can be applied to modify these boundaries. Thus, a SMA-based control system can be designed to reduce the adverse dynamic response of composite structures due to flutter phenomen

Topics: TA401, TA355
Publisher: Elsevier
Year: 2001
DOI identifier: 10.1016/s0263-8223(01)00102-7
OAI identifier: oai:nectar.northampton.ac.uk:61
Provided by: NECTAR
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