Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
Autori: L.-G. BUJOREANU, S. STANCIU, A. ENACHE, C. LOHAN, I. RUSU
Editorial: INOE, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, Vol. 10, No. 3, March, p.602-606, 2008.
The paper analyses the reproducible behaviour of three work generating applications of shape memory electric actuators,
trained for two way shape memory effect (TWSME) in bending. The first is a lifting device, the displacement-temperature
variation of which is considered as a function of time while revealing the influence of applied load. The second is an electric
circuit breaker (disjunctor) for electric overload protection, the functioning of which is compared to that of a bimetallic
thermostat, while revealing the influence of applied voltage. The third is a composite with polymeric matrix, the geometrical
evolutions of which are monitored as a function of temperature, while revealing the influence of matrix on the bending
reproducible behaviour. A comparison is performed between the critical transformation temperatures of the three devices,
by emphasizing the influence of extrinsic factors on their mechanical responses
Cuvinte cheie: Cu-Zn-Al-Ni, Shape memory alloys, Actuator, Mechanical response, Critical temperatures, Reproducibility