A Postdoctoral Research Associate Position is available immediately in Professor R. Thevamaran’s laboratory (https://thevamaran.engr.wisc.edu) at the Department of Mechanical Engineering of the University of Wisconsin-Madison. The research will focus on design, fabrication, micro/nanostructural characterization, and thermo-mechanical testing, and modeling of carbon nanotube-based hierarchical composites.
Dear Colleagues,
I invite you to read our recent paper on hierarchically architected foams published in Extreme Mechanics Letters: Read full article here.
Abstract
Achieving high damping and stiffness is challenging in common materials because of their inter-dependent scaling. Controlling extreme mechanical waves requires synergistically enhanced damping and stiffness. We demonstrate superior damping and stiffness in vertically aligned carbon nanotube (VACNT) foams that are also independently controllable by exploiting their synthesis-tailored structural hierarchy and structural gradients. They exhibit frequency- and amplitude-dependent responses with dramatically tunable dynamic stiffness while maintaining constant damping.
A Postdoctoral Research Associate Position is available in Professor R. Thevamaran's laboratory at the Department of Engineering Physics to study the dynamic behavior and properties of nanostructured metals and hierarchical materials. A strong background in experimental solid mechanics and materials science is required for this research.
I'm posting a few experimental studies we have conducted on the dynamic behavior of hierarchical fibrous materials, using vertically aligned carbon nanotubes as a model material. I hope these will be useful to those who are interested in buckle-instabilities, multiscale behavior, and energy absorption mechanisms.
An overview:
Hierarchical Mechanics of Diatom Algae: From Atoms to Organism and Weakness to Strength
This month’s iMechanica Journal Club theme is the hierarchical structure and mechanics of diatom algae, silicified organisms that use silica (“sand”) – abundantly available in the ocean – to construct strong, tough and stiff structures [1-10]. The interest in this area has been revived recently given recent advances in the combined measurement, modeling and synthesis of these materials, leading to exciting research being conducted at the interface of mechanics and biology.
As part of the 12th Pan American Congress of Applied Mechanics (PACAM XII) to be held in Port of Spain, Trinidad, from Jan. 2 to 6, 2012, it is our pleasure to invite you to submit an abstract to the Symposium “Multiscale modeling and simulation of complex materials and systems”.
