Journal
SENSORS AND ACTUATORS A-PHYSICAL
Volume 362, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2023.114677
Keywords
Sensing nanocomposite; Electrical conductivity; Compressive strain; Percolation network; Finite -element simulation
Ask authors/readers for more resources
The pressure/resistance sensitivity of the GNP elastomeric nanocomposite was investigated using a finite element percolation model. The study found that the alignment direction and volume fraction are the dominant factors influencing the resistance response.
The pressure/resistance sensitivity of the GNP elastomeric nanocomposite is investigated using a finite element percolation model. The simulation model creates an elastomeric RVE, including solid GNP disks, and updates the position and direction of GNPs after the applied pressure. The percolation model predicts the tunneling paths between GNP intersections between the two electrodes. The percolation network between electrodes is promoted through the prevalent contact mechanism between GNPs. The developed numerical model simulates the electrical conductivity and pressure/resistance response in a good correlation with experimental data. Results explain the dominant factors of alignment direction and volume fraction on the resistance response. The resistivity of the nanocomposite reduces significantly with critical distance with a reduced variation rate for lower volume fractions. Results indicate linear pressure/resistance sensitivity under a compressed strain up to 0.16. The results reveal a controllable sensitivity through the appropriate choice of GNP alignment direction, aspect ratio, and volume fraction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available