Piezoresistive behavior of CNT nanocomposites using atomistic and micromechanics models

Theodosis C. Theodosiou; Dimitris A. Saravanos

doi:10.1117/12.816943

31 March 2009 Piezoresistive behavior of CNT nanocomposites using atomistic and micromechanics models

Theodosis C. Theodosiou, Dimitris A. Saravanos

Proceedings Volume 7289, Behavior and Mechanics of Multifunctional Materials and Composites 2009; 728918 (2009) https://doi.org/10.1117/12.816943
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

In carbon nanotube (CNT) polymer nanocomposites (PNC), the formation of conductive CNT networks results in electrical conductance and piezoresistive behavior. The latter occurs as applied strain affects the electric properties of the nanotubes. Modeling of piezoresistive behavior is investigated in two discrete scales. At the nanoscale, where for the prediction of the CNT piezoresistive behavior the Tight-Binding approximation is employed together with the Miller- Good approximation. At the microscale where percolation is studied using both two- and three- dimensional models and as well as the differences in resultant predictions. Numerical results at both scales are presented.

Citation Download Citation

Theodosis C. Theodosiou and Dimitris A. Saravanos "Piezoresistive behavior of CNT nanocomposites using atomistic and micromechanics models", Proc. SPIE 7289, Behavior and Mechanics of Multifunctional Materials and Composites 2009, 728918 (31 March 2009); https://doi.org/10.1117/12.816943

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