Piezoresistive behavior of CNT nanocomposites using atomistic and micromechanics models

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.

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