Our book “A Primer on the Kinematics of Discrete Elastic Rods” has been published. It is available free of charge to students through institutional subscription: https://link.springer.com/book/10.1007/978-3-319-76965-3
May 6, 2018
All posts by khalidjm@umich.edu
Mechanics of Carbon Nanotubes
Details coming soon. Abstract of our publication:
We develop and perform continuum mechanics simulations of carbon nanotube (CNT) deployment directed by a combination of surface topography and rarefied gas flow. We employ the Discrete Elastic Rods method to model the deposition of CNT as a slender elastic rod that evolves in time under two external forces, namely van der Waals (vdW) and aerodynamic drag. Our results confirm that this self-assembly process is analogous to a previously studied macroscopic system, the `elastic sewing machine’, where an elastic rod deployed onto a moving substrate forms nonlinear patterns. In the case of CNTs, the complex patterns observed on the substrate, such as coils and serpentines, result from an intricate interplay between van der Waals attraction, rarefied aerodynamics, and elastic bending. We systematically sweep through the multidimensional parameter space to quantify the pattern morphology as a function of the relevant material, flow, and geometric parameters. Our findings are in good agreement with available experimental data. Scaling analysis involving the relevant forces helps rationalize our observations.
Continuum model of CNT in Nano Letters (02/16/2018)
“Patterns of carbon nanotubes by flow directed deposition on substrates with architectured topographies” has been published in Nano Letters. More details on this research here.
February 16, 2018
Joined UCLA (07/01/2017)
I joined the Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, as an Assistant Professor.
July 1, 2017
Wall-effects on flagellar mechanics in PRFluids (03/24/17)
“Dynamics of a flexible helical filament rotating in a viscous fluid near a rigid boundary” has been published in Physical Review Fluids. More details on this research here.
March 24, 2017
Joined Carnegie Mellon University (09/01/2016)
I joined Integrated Soft Materials Laboratory for Human-compatible Machines and Electronics at Carnegie Mellon University, Pittsburgh, PA, as a postdoctoral fellow.
September 1, 2016
Doctoral thesis defense (07/14/16)
I defended my doctoral thesis titled “Geometrically nonlinear configurations in rod-like structures” at 10:00-11:00am on July 14, 2016 in Room 3-333, MIT.
July 14, 2016
Flagellar mechanics at APS meeting (03/14/16)
Our work on the effect of a rigid boundary on the propulsion and instability of flagellar propulsion will be presented at American Physical Society (APS) March meeting to be held in Baltimore, MD. The presentation is scheduled for 1:27-1:39pm, March 14, 2016, in Baltimore Convention Center. Click here for details. More details on our research on flagellar mechanics can be found here.
March 14, 2016
Flagella in axial flow in Soft Matter (12/15/15)
Our paper “Deformation of a soft helical filament in an axial flow at low Reynolds number” has been accepted for publication in Soft Matter. More details on our research on the mechanics of bacterial flagella can be found here.
December 15, 2015
Flagellar mechanics at APS meeting (11/24/15)
Our work on the effect of a rigid boundary on the propulsion and instability of flagellar propulsion was presented at American Physical Society (APS) Division of Fluid Dynamics (DFD) annual meeting to be held in Boston. The presentation is scheduled for 1:29-1:42pm, November 24, 2015, in Hynes Convention Center. Click here for details. More details on our research on flagellar mechanics can be found here.
November 24, 2015