LEAL, A. S. C.; http://lattes.cnpq.br/9871802809085027; LEAL, Artur Soares Cavalcanti.
Resumo:
Use of the epoxy systems in the area and performance of modern industry
technology, combined with the nanocomposite materials has been extensively
studied in recent years. The Shape Memory Alloy (SMA) wire embedded in
polymer matrix with epoxy resin and organoclay may form an exaggeratedly
named structure “smart composites”. This technological development occurred
due necessary use of materials with special properties not found in a single
material, but can be obtained by combining others material, craving unique
properties. The study the thermal behavior of wires of the wire Ni-Ti incorporated
in to nanocomposites heated by Joule effect using infrared thermography
technique, modeling and simulation, in order to develop and optimize composites
for mechanical active vibration control is of great interest and originality. In this
context the present study evaluate the theoretical and experimental thermal effect
in Ni-Ti wires embedded in polymer nanocomposites epoxy/organoclay
commercial organoclays, heated by Joule effect. For both, polymer
nanocomposites were obtained for receiving the Ni-Ti wire, the temperature
distribution of wires embedded in polymer nanocomposites, using infrared
thermography technique and simulation using ANSYS CFX commercial software
were evaluated. The mathematical model used reproduced the phenomenon of
heat transfer in the resin, aproximate efficiency consistent results and the results
obtained experimentally. The addition of clay in the chemical composition of the
sample had proportional influence to heating by Joule effect. The locations of the
wires in the matrix, the clay and the heat transfer coefficient as well as the volume
fraction affect the temperature distribution with in the composite.
