Stretchable Line Network Systems
Lihua Jin, Shaswat Mohanty, Myung Chul Kim
- Carbon Nanotube Networks
We have developed a coarse-grained molecular statics (CGMS) model for carbon nanotube (CNT) networks forming a 2-dimensional film that is both conducting and stretchable. The model predicts how the morphology of the CNT network evolves during loading/unloading cycles (see below). From this model, we can also predict how the electrical resistance of the film evolves with strain; excellent agreement is found between theoretical prediction and experimental measurements. We have shown the applicability of this model for a 3D morphology with the hysteretic behavior being strongly dependent on the initialization of the fibers in space.
The above figure shows the schematic of the quasi-2D CNT film network on a PDMS substrate that can be modeled with a 2D CGMS simulation.
The goal of this project workflow is to generalize CNT configurations as smooth and randomly oriented 3D curves, and capture both the mechanical response, and the electrical response (by studying the changes in the network -- charge carrying path connectivity).
Evolution of the charge-carrying contacts of the CNT matrix with NMC (electrode) particles.
2. Fibrin Network Modeling
We extend the CGMS representation to model the Fibrin network. Our study is split into two parts: (i) analysis of a pure fibrin network, (ii) analysis of a fibrin network with different RBC content.
Publications
- Lihua Jin, Alex Chortos, Feifei Lian, Eric Pop, Christian Linder, Zhenan Bao, and Wei Cai, "Microstructural origin of resistance-strain hysteresis in carbon nanotube thin film conductors", Proceedings of the National Academy of Sciences, early edition (2018).
- Oleg A. Kuznetsov, Shaswat Mohanty, Elena Pigos, Gugang Chen, Wei Cai and Avetik R. Harutyunyan, "High Energy Density and Ecofriendly Lithium-Ion Smart Battery", Energy Storage Materials, 54, 266 (2022). [DOI] [Scholar]