Electromechanical modeling of GNP nanocomposites for stress sensors applications

Author

D´Aloia, Alessandro Giuseppe ; Tamburrano, Alessio ; De Bellis, Giovanni ; Sarto, Maria Sabrina

Author_Institution

Dept. of Astronaut., Electr. & Energetic Eng., Sapienza Univ. of Rome, Rome, Italy

fYear

2011

fDate

15-18 Aug. 2011

Firstpage

1648

Lastpage

1651

Abstract

Graphite nanoplatelets (GNPs) can be included in very low weight percentages in a polymer matrix to create new lightweight nanocomposites with desired electromechanical properties, for application in strain sensors. The development of simulation models for the prediction of the electromechanical characteristics of such composites is very important for design and performance optimization purposes. In this study we propose an electromechanical model for the prediction of the response of a strain sensor made of GNP-filled composite. The developed simulation approach is based on the tunneling-percolation model of the electrical transport in the composite, and on the experimental characterization of the dc conductivity of GNPs and GNP-filled composites at different concentrations, produced in the CNIS Labs of Sapienza University.

Keywords

electromechanical effects; graphite; nanocomposites; percolation; polymers; sensors; tunnelling; GNP nanocomposites; electrical transport; electromechanical modeling; graphite nanoplatelets; polymer matrix; stress sensors; tunneling-percolation model; Conductivity; Economic indicators; Electromechanical sensors; Nanocomposites; Strain; Stress; Nanocomposites; effective dc conductivity; electromechanical modeling; graphite nanoplatelets; stress sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology (IEEE-NANO), 2011 11th IEEE Conference on

Conference_Location

Portland, OR

ISSN

1944-9399

Print_ISBN

978-1-4577-1514-3

Electronic_ISBN

1944-9399

Type

conf

DOI

10.1109/NANO.2011.6144649

Filename

6144649