Optimal design of damping layers in SMA/GFRP laminated hybrid composites

This work describes the optimization of the shape profiles for shape memory alloys (SMA) sheets in hybrid layered composite structures, i.e. slender beams or thinner plates, designed for the passive attenuation of flexural vibrations. The paper starts with the description of the material and archite...

Full description

Saved in:
Bibliographic Details
Published inSmart materials and structures Vol. 26; no. 10; pp. 105015 - 105027
Main Authors Haghdoust, P, Cinquemani, S, Conte, A Lo, Lecis, N
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.10.2017
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:This work describes the optimization of the shape profiles for shape memory alloys (SMA) sheets in hybrid layered composite structures, i.e. slender beams or thinner plates, designed for the passive attenuation of flexural vibrations. The paper starts with the description of the material and architecture of the investigated hybrid layered composite. An analytical method, for evaluating the energy dissipation inside a vibrating cantilever beam is developed. The analytical solution is then followed by a shape profile optimization of the inserts, using a genetic algorithm to minimize the SMA material layer usage, while maintaining target level of structural damping. Delamination problem at SMA/glass fiber reinforced polymer interface is discussed. At the end, the proposed methodology has been applied to study the hybridization of a wind turbine layered structure blade with SMA material, in order to increase its passive damping.
Bibliography:SMS-105231.R3
ISSN:0964-1726
1361-665X
DOI:10.1088/1361-665X/aa87dc