Bibliographic Details
| Title: |
Intruder in a two-dimensional granular system: Effects of dynamic and static basal friction on stick-slip and clogging dynamics |
| Authors: |
Carlevaro, C. Manuel, Kozlowski, Ryan, Pugnaloni, Luis A., Zheng, Hu, Socolar, Joshua E. S., Kondic, Lou |
| Source: |
Phys. Rev. E 101, 012909 (2020) |
| Publication Year: |
2019 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Soft Condensed Matter |
| More Details: |
We discuss the results of simulations of an intruder pulled through a two-dimensional granular system by a spring, using a model designed to lend insight into the experimental findings described by Kozlowski et al. [Phys. Rev. E, 100, 032905 (2019)]. In that previous study the presence of basal friction between the grains and the base was observed to change the intruder dynamics from clogging to stick-slip. Here we first show that our simulation results are in excellent agreement with the experimental data for a variety of experimentally accessible friction coefficients governing interactions of particles with each other and with boundaries. Then, we use simulations to explore a broader range of parameter space, focusing on the friction between the particles and the base. We consider a range of both static and dynamic basal friction coefficients, which are difficult to vary smoothly in experiments. The simulations show that dynamic friction strongly affects the stick-slip behaviour when the coefficient is decreased below 0.1, while static friction plays only a marginal role in the intruder dynamics.
Comment: 19 pages, 10 figures, 2 tables |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevE.101.012909 |
| Access URL: |
http://arxiv.org/abs/1910.07073 |
| Accession Number: |
edsarx.1910.07073 |
| Database: |
arXiv |
