Thermo-dynamic characteristics of nitinol-reinforced composite beams

摘要: Abstract The dynamic characteristics of flexible composite beams are controlled by heating sets shape memory alloy (NITINOL) fibers embedded along the neutral axes these beams. activation effect increases elastic energy and enhances stiffness With such capabilities, vibration modes can be tailored shifted away from excitation frequency band in order to avoid undesirable vibrations. Emphasis is placed, present study, on intentional electrical a selected subset NITINOL overall dynamics associated thermal propagating through unintentional additional subsets accounted for. Such an not only significant but also essential thorough understanding operation NITINOL-reinforced composites. Finite element models developed describe interaction between composites as well fibers. experimentally validated close agreement obtained theoretical predictions experimental results. mathematical procedures described this paper provide invaluable means predicting realistic performance