The present work is aimed at the development of a finite element model of a composite laminate, to evaluate the possibility to snap between equilibrium configurations by means of shape memory alloy (SMA) wires. The underlying idea is to potentially take advantage of structures which possess multiple equilibrium configurations that can be achieved with a small energy input. Therefore, unsymmetric composite laminates that exhibit bistable response to actuation force are considered. Embedded SMA wires will provide the actuation force by virtue of Shape-Memory Effect i.e. restoring the original shape of a plastically deformed SMA wire by heating it. The Shape- Memory Effect is modelled in a simplified way using the Effective Coefficient of Thermal Expansion concept.

Analysis of bistable composite laminate with embedded SMA actuators / Gandhi, Yogesh; Pirondi, A.; Collini, L.. - In: PROCEDIA STRUCTURAL INTEGRITY. - ISSN 2452-3216. - 12(2018), pp. 429-437. [10.1016/j.prostr.2018.11.075]

Analysis of bistable composite laminate with embedded SMA actuators

GANDHI, YOGESH
;
A. Pirondi;L. Collini
2018

Abstract

The present work is aimed at the development of a finite element model of a composite laminate, to evaluate the possibility to snap between equilibrium configurations by means of shape memory alloy (SMA) wires. The underlying idea is to potentially take advantage of structures which possess multiple equilibrium configurations that can be achieved with a small energy input. Therefore, unsymmetric composite laminates that exhibit bistable response to actuation force are considered. Embedded SMA wires will provide the actuation force by virtue of Shape-Memory Effect i.e. restoring the original shape of a plastically deformed SMA wire by heating it. The Shape- Memory Effect is modelled in a simplified way using the Effective Coefficient of Thermal Expansion concept.
Analysis of bistable composite laminate with embedded SMA actuators / Gandhi, Yogesh; Pirondi, A.; Collini, L.. - In: PROCEDIA STRUCTURAL INTEGRITY. - ISSN 2452-3216. - 12(2018), pp. 429-437. [10.1016/j.prostr.2018.11.075]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2854727
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 5
social impact