Corneliu Cismasiu

Citation:

Santos, F. P., and C. Cismasiu. "Shape memory alloys in structural vibration control." EVACES'07 - Experimental Vibration Analysis for Civil Engineering Structures. FEUP, Porto, Portugal 2007.

Date Presented:

Abstract:

The unique superelastic behaviour exhibited by shape memory alloys (SMAs) allows the material to recover after withstanding large deformations. This recovery takes place without any residual strains, while dissipating a considerable amount of energy. This property makes the SMAs particularly suitable for applications in vibration control devices. Numerical models, calibrated with experimental laboratory tests, are used to investigate the dynamic response of vibration control devices. These devices are built up of austenitic superelastic wires. The energy dissipation and re-centring capabilities, important features of these devices, are clearly illustrated by the numerical tests. One of these devices is tested as a seismic passive vibration control system in a simplified numerical model of a railway viaduct.

Notes:

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