INVESTIGADORES
AMBROSINI Ricardo Daniel
artículos
Título:
Dynamic response of composites sandwich plates with carbon nanotubes subjected to blast loading
Autor/es:
FERNANDA DE BORBÓN; DANIEL AMBROSINI
Revista:
COMPOSITES PART B-ENGINEERING
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2013 p. 466 - 473
ISSN:
1359-8368
Resumen:
An experimental study of the dynamic response of composite aluminum epoxy resinCNT sandwich
plates subjected to blast load is presented in this paper. The sandwich plates consist of aluminum square
plates with a core of epoxy resin matrix and 5% in weight of CNT. For comparison purposes, plates with
neat epoxy resin core were also tested. Disc shaped plastic explosive (PE4) is used to impart uniform and
localized blast loading to the plates. The mass of the explosive is varied to provide a range of response of
the sandwich panels from plastic deformation to complete tearing. It was found that the permanent displacement
is larger for the plates with CNTs, as for uniform well as localized blast loading, indicating that
the inherent brittleness of epoxy resins was overcome by adding CNTs. On the other hand, once the composite
material with CNTs has reached the fracture, it is exhibited better energy dissipation behavior than
the neat epoxy specimens. Preliminary results show that the failure load is larger for the specimens with
CNTs.